June 14, 2011

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De-severance describes the way we exist as a process of spatial self-determination by "making things available" to ourselves. In Heidegger's language, in making things available we "take in space" by "making the farness vanish" and by "bringing things close"

We are not simply contemplative beings, but we exist through concretely acting in the world - by reaching for things and going to places. When I walk from my desk area into the kitchen, I am not simply alternating locations from points ‘A’ to ‘B’ in an arena-like space, but I am "taking in space" as I move, continuously making the "farness" of the kitchen "vanish," as the shifting spatial perspectives are opened as I go along.

This process is also inherently "directional." Every de-severing is aimed toward something or in a certain direction that is determined by our concern and by specific regions. I must always face and move in a certain direction that is dictated by a specific region. If I want to get a glass of ice tea, instead of going out into the yard, I face toward the kitchen and move in that direction, following the region of the hallway and the kitchen. Regions determine where things belong, and our actions are coordinated in directional ways accordingly.

De-severance, directionality, and regionality are three ways of describing the spatiality of a unified Being-in-the-world. As aspects of Being-in-the-world, these spatial modes of being are equiprimordial. Regions "refer" to our activities, since they are established by our ways of being and our activities. Our activities, in turn, are defined in terms of regions. Only through the region can our de-severance and directionality are established. Our object of concern always appears in a certain context and place, in a certain direction. It is because things appear in a certain direction and in their places "there" that we have our "here." We orient ourselves and organize our activities, always within regions that must already be given to us.

Heidegger's analysis of space does not refer to temporal aspects of Being-in-the-world, even though they are presupposed. In the second half of Being and Time he explicitly turns to the analysis of time and temporality in a discussion that is significantly more complex than the earlier account of spatiality. Heidegger makes the following five distinctions between types of time and temporality: (1) The ordinary or "vulgar" conception of time; this is time conceived as Vorhandenheit. (2) World-time; this is time as Zuhandenheit. Dasein's temporality is divided into three types: (3) Dasein's inauthentic (uneigentlich) temporality, (4) Dasein's authentic (eigentlich) temporality, and (5) originary temporality or "temporality as such." The analyses of the vorhanden and zuhanden modes of time are interesting, but it is Dasein's temporality that is relevant to our discussion, since it is this form of time that is said to be founding for space. Unfortunately, Heidegger is not clear about which temporality plays this founding role.

We can begin by excluding Dasein's inauthentic temporality. This mode of time refers to our unengaged, "average" way in which we regard time. It is the "past we forget" and the "future we expect," all without decisiveness and resolute understanding. Heidegger seems to consider that this mode of a temporality is the temporal dimension of de-severance and directionality, since de-severance and directionality deal only with everyday actions. As such, is the inauthenticity founded within a temporality that must in themselves be set up in an authentic basis of some sort. The two remaining candidates for the foundation are Dasein's authentic temporality and originary temporality.

Dasein's authentic temporality is the "resolute" mode of temporal existence. An authentic temporality is realized when Dasein becomes aware of its own finite existence. This temporality has to do with one's grasp of his or her own life as a whole from one's own unique perspective. Life gains meaning as one's own life-project, bounded by the sense of one's realization that he or she is not immortal. This mode of time appears to have a normative function within Heidegger's theory. In the second half of BT he often refers to inauthentic or "everyday" mode of time as lacking some primordial quality which authentic temporality possesses.

In contrast, an originary temporality is the formal structure of Dasein's temporality itself. In addition to its spatial Being-in-the-world, Dasein also exists essentially as "projection." Projection is oriented toward the future, and this coming orientation regulates our concern by constantly realizing various possibilities. A temporality is characterized formally as this dynamic structure of "a future that makes present in the process of having been." Heidegger calls the three moments of temporality - the future, the present, and the past - the three ecstasies of the temporality. This mode of time is not normative but rather formal or neutral; as Blattner argues, the temporal features that constitute Dasein's temporality describe both inauthentic and authentic temporalities.

There are some passages that indicate that authentic temporality is the primary manifestation of the temporality, because of its essential orientation toward the future. For instance, Heidegger states that "temporality first showed itself in anticipatory resoluteness." Elsewhere, he argues that "the ‘time’ which is accessible to Dasein's common sense is not primordial, but arises rather from authentic temporality." In these formulations, authentic to the temporality is said to find of other inauthentic modes. According to Blattner, this is "by far the most common" interpretation of the status of authentic time.

However, to argue with Blattner and Haar, in that there are far more passages where Heidegger considers an originary temporality as distinct from authentic temporality, and founding for it and for Being-in-the-world as well. Here are some examples: The temporality has different possibilities and different ways of temporalizing itself. The basic possibilities of existence, the authenticity and inauthenticity of Dasein, are grounded ontologically on possible temporalizations of temporality. Time is primordial as the temporalizing of a temporality, and as such it makes possible the Constitution of the structure of care.

Heidegger's conception seems to be that it is because we are fundamentally temporal - having the formal structure of ecstatic-horizontals unity - that we can project, authentically or inauthentically, our concernful dealings in the world and exist as Being-in-the-world. It is on this account that temporality is said to found spatiality.

Since Heidegger uses the term "temporality" rather than "an authentic temporality" whenever the founding relation is discussed between space and time, I will begin the following analysis by assuming that it is originary temporality that founds Dasein's spatiality. On this assumption two interpretations of the argument are possible, but both are unsuccessful given his phenomenological framework.

The principal argument, entitled "The Temporality of the Spatiality that is Characteristic of Dasein." Heidegger begins the section with the following remark: Though the expression `temporality' does not signify what one understands by "time" when one talks about `space and time', nevertheless spatiality seems to make up another basic attribute of Dasein corresponding to temporality. Thus with Dasein's spatiality, existential-temporal analysis seems to come to a limit, so that this entity that we call "Dasein," must be considered as `temporal' `and' as spatial coordinately.

Accordingly, Heidegger asks, "Has our existential-temporal analysis of Dasein thus been brought to a halt . . . by the spatiality that is characteristic of Dasein . . . and Being-in-the-world?" His answer is no. He argues that since "Dasein's constitution and its ways to be are possible ontologically only on the basis of temporality," and since the "spatiality that is characteristic of Dasein . . . belongs to Being-in-the-world," it follows that "Dasein's specific spatiality must be grounded in temporality."

Heidegger's claim is that the totality of regions-de-severance-directionality can be organized and re-organized, "because Dasein as temporality is ecstatic-horizontals in its Being." Because Dasein exists futurely as "for-the-sake-of-which," it can discover regions. Thus, Heidegger remarks: "Only on the basis of its ecstatic-horizontals temporality is it possible for Dasein to break into space."

However, in order to establish that temporality founds spatiality, Heidegger would have to show that spatiality and temporality must be distinguished in such a way that temporality not only shares a content with spatiality but also has additional content as well. In other words, they must be truly distinct and not just analytically distinguishable. But what is the content of "the ecstatic-horizontals constitution of temporality?" Does it have a content above and beyond Being-in-the-world? Nicholson poses the same question as follows: Is it human care that accounts for the characteristic features of a humanistic temporality? Or is it, as Heidegger says, human temporality that accounts for the characteristic features of human care, serves as their foundation? The first alternative, according to Nicholson, is to reduce temporality to care: "the specific attributes of the temporality of Dasein . . . would be in their roots not aspects of temporality but reflections of Dasein's care." The second alternative is to treat temporality as having some content above and beyond care: "the three-fold constitution of care stems from the three-fold constitution of temporality."

Nicholson argues that the second alternative is the correct reading.18 Dasein lives in the world by making choices, but "the ecstasies of temporality lies well prior to any choice . . . so our study of care introduces us to a matter whose scope outreaches care: the ecstasies of temporality itself." Accordingly, "What was able to make clear is that the reign of temporal ecstasies over the choices we make accords with the place we occupy as finite beings in the world."

But if Nicholson's interpretation is right, what would be the content of "the ecstasies of the temporality itself," if not some sort of purely formal entity or condition such as Kant's "pure intuition?" But this would imply that Heidegger has left phenomenology behind and is now engaging in establishing a transcendental framework outside the analysis of Being-in-the-world, such that this formal structure founds Being-in-the-world. This is inconsistent with his initial claim that Being-in-the-world is itself foundational.

Nicholson's first alternative offers a more consistent reading. The structure of temporality should be treated as an abstraction from Dasein's Being-in-the-world, specifically from care. In this case, the content of temporality is just the past and the present and the future ways of Being-in-the-world. Heidegger's own words support this reading: "as Dasein temporalizes itself, a world is too," and "the world is neither present-at-hand nor ready-to-hand, but temporalizes itself in temporality." He also states that the zuhanden "world-time, in the rigorous sense of the existential-temporal conception of the world, belongs as itself." In this reading, "temporality temporalizing itself," "Dasein's projection," and "the temporal projections of the world" are three different ways of describing the same "happening" of Being-in-the-world, which Heidegger calls "self-directive."

However, if this is the case, then temporality does not found spatiality, except perhaps in the trivial sense that spatiality is built into the notion of care that is identified with temporality. The fulfilling contents of "temporality temporalizing itself" simply is the various openings of regions, i.e., Dasein's "breaking into space." Certainly, as Stroeker points out, it is true that "nearness and remoteness are spatially-transient phenomena and cannot be conceived without a temporal moment." But this necessity does not constitute a foundation. Rather, they are equiprimordial. The addition of temporal dimensions does indeed complete the discussion of spatiality, which abstracted from time. But this completion, while it better articulates the whole of Being-in-the-world, does not show that temporality is more fundamental.

If temporality and spatiality are equiprimordial, then all of the supposedly founding relations between temporality and spatiality could just as well be reversed and still hold true. Heidegger's view is that "because Dasein as temporality is ecstatic-horizontals in its Being, it can take along with it a space for which it has made room, and it can do so farcically and constantly." But if Dasein is essentially a factical projection, then the reverse should also be true. Heidegger appears to have assumed the priority of temporality over spatiality perhaps under the influence of Kant, Husserl, or Dilthey, and then based his analyses on that assumption.

However, there may still be a way to save Heidegger's foundational project in terms of authentic temporality. Heidegger never specifically mentions the authenticity of temporalities, since he suggests earlier that the primary manifestation of temporality is authentic temporality, such a reading may perhaps be justified. This reading would treat the whole spatio-temporal structure of Being-in-the-world. The resoluteness of authentic temporality, arising out of Dasein's own "Being-towards-death," would supply a content to temporality above and beyond everyday involvements.

Heidegger is said to have its foundations in resoluteness, Dasein determines its own Situation through anticipatory resoluteness, which includes particular locations and involvements, i.e., the spatiality of Being-in-the-world. The same set of circumstances could be transformed into a new situation with different significance, if Dasein chooses resolutely to bring that about. Authentic temporality in this case can be said to found spatiality, since Dasein's spatiality is determined by resoluteness. This reading moreover enables Heidegger to construct a hierarchical relation between temporality and spatiality within Being-in-the-world than going outside of it to a formal transcendental principle, since the choice of spatiality is grasped phenomenological ly in terms of the concrete experience of decision.

Moreover, one might argue that according to Heidegger one's own grasp of "death" is uniquely a temporal mode of existence, whereas there is no such weighty conception involving spatiality. Death is what makes Dasein "stands before itself in its own most potentiality-for-Being." Authentic Being-towards-death is a "Being towards a possibility - indeed, towards a distinctive possibility of Dasein itself." One could argue that notions such as "potentiality" and "possibility" are distinctively temporal, nonspatial notions. So "Being-towards-death," as temporal, appears to be much more ontologically "fundamental" than spatiality.

However, Heidegger is not yet out of the woods. I believe that labelling the notions of anticipatory resoluteness, Being-towards-death, potentiality, and possibility specifically as temporal modes of being (to the exclusion of spatiality) begs the question. Given Heidegger's phenomenological framework, why assume that these notions are only temporal (without spatial dimensions)? If Being-towards-death, potentiality-for-Being, and possibilities were "purely" temporal notions, what phenomenological sense can we make of such abstract conceptions, given that these are manifestly our modes of existence as bodily beings? Heidegger cannot have in mind such an abstract notion of time, if he wants to treat of the proposed authenticity that corragulates of temporality is the meaning of care. It would seem more consistent with his theoretical framework to say that Being-towards-death is a rich spatio-temporal mode of being, given that Dasein is Being-in-the-world.

Furthermore, the interpretation that defines resoluteness as uniquely temporal suggests too much of a voluntaristic or subjectivistic notion of the self that controls its own Being-in-the-world from the standpoint of its future. This would drive a wedge between the self and its Being-in-the-world, thereby creating a temporal "inner self" which can decide its own spatiality. However, if Dasein is Being-in-the-world as Heidegger claims, then all of Dasein's decisions should be viewed as concretely grounded in Being-in-the-world. If so, spatiality must be an essential constitutive element.

Hence, authentic temporality, if construed narrowly as the mode of temporality, at first appears to be able to found spatiality, but it also commits Heidegger either to an account of time that is too abstract, or to the notion of the self far more like Sartre's than his own. What is lacking in Heidegger's theory that generates this sort of difficulty is a developed conception of Dasein as a lived body - a notion more fully developed by Merleau-Ponty.

The elements of a more consistent interpretation of authentic temporality are present in Being and Time. This interpretation incorporates a view of "authentic spatiality" in the notion of authentic temporality. This would be Dasein's resolutely grasping its own spatio-temporal finitude with respect to its place and its world. Dasein is born at a particular place, lives in a particular place, dies in a particular place, all of which it can relate to in an authentic way. The place Dasein lives are not a place of anonymous involvements. The place of Dasein must be there where its own potentiality-for-Being is realized. Dasein's place is thus a determination of its existence. Had Heidegger developed such a conception more fully, he would have seen that temporality is equiprimordial with thoroughly spatial and contextual Being-in-the-world. They are distinguishable but equally fundamental ways of emphasizing our finitude.

The internalized tensions within his theory eventually led Heidegger to reconsider his own positions. In his later period, he explicitly develops what may be viewed as a conception of authentic spatiality. For instance, in "Building Dwelling Thinking," Heidegger states that Dasein's relations to locations and to spaces inheres in dwelling, and dwelling is the basic character of our Being. The notion of dwelling expresses an affirmation of spatial finitude. Through this affirmation one acquires a proper relation to one's environment.

But the idea of dwelling must accede to the fact that has already been discussed in Being and Time, regarding the term "Being-in-the-world," Heidegger explains that the word "in" is derived from "in-an" - to "reside," "habits are," "to dwell." The emphasis on "dwelling" highlights the essentially "worldly" character of the self.

Thus from the beginning Heidegger had a conception of spatial finitude, but this fundamental insight was undeveloped because of his ambition to carry out the foundational project that favoured time. From the 1930's on, as Heidegger abandons the foundational project focussing on temporality, the conception of authentic spatiality comes to the fore. For example, in Discourse on Thinking Heidegger considers the spatial character of Being as "that-which-regions (die Gegnet)." The peculiar expression is a re-conceptualization of the notion of "region" as it appeared in Being and Time. Region is given an active character and defined as the "openness that surrounds us" which "comes to meet us." By giving it an active character, Heidegger wants to emphasize that region is not brought into being by us, but rather exists in its own right, as that which expresses our spatial existence. Heidegger states that "one needs to understand ‘resolve’ (Entschlossenheit) as it is understood in Being and Time: as the opening of man [Dasein] particularly undertaken by him for openness, . . . which we think of as that-which-regions." Here Heidegger is asserting an authentic conception of spatiality. The finitude expressed in the notion of Being-in-the-world is thus transformed into an authentic recognition of our finite worldly existence in later writings.

Meanwhile, it seems that it is nonetheless, natural to combine this close connection with conclusions by proposing an account of self-consciousness, as to the capacity to think "I"-thoughts that are immune to error through misidentification, though misidentification varies with the semantics of the "self" - this would be a redundant account of self-consciousness. Once we have an account of what it is to be capable of thinking "I"-thoughts, we will have explained everything distinctive about self-consciousness. It stems from the thought that what is distinctive about "I"-thoughts are that they are either themselves immune to error or they rest on further "I" - Thoughts that are immune in that way.

Once we have an account of what it is to be capable of thinking thoughts that are immune to error through misidentification, we will have explained everything about the capacity to think "I"-thoughts. As it would to claim of deriving from the thought that immunity to error through misidentification depends on the semantics of the "self."

Once, again, that when we have an account of the semantics in that we will have explained everything distinctive about the capacity to think thoughts that are immune to error through misidentification.

The suggestion is that the semantics of "self-ness" will explain what is distinctive about the capacity to think thoughts immune to error through misidentification. Semantics alone cannot be expected to explain the capacity for thinking thoughts. The point in fact, that all that there is to the capacity of think thoughts that are immune tp error is the capacity to think the sort of thought whose natural linguistic expression involves the "self," where this capacity is given by mastery of the semantics of "self-ness." Yielding, to explain what it is to master the semantics of "self-ness," especially to think thoughts immune to error through misidentification.

On this view, the mastery of the semantics of "self-ness" may be construed as for the single most important explanation in a theory of "self-consciousness."

Its quickened reformulation might be put to a defender of "redundancy" or the deflationary theory is how mastery of the semantics of "self-ness" can make sense of the distinction between "self-ness contents" that are immune to error through misidentification and the "self contents" that lack such immunity. However, this is only an apparent difficulty when one remembers that those of the "selves" content is immune to error through misidentification, because, those employing ‘"I" as object, were able in having to break down their component elements. The identification component and the predication components that for which if the composite identification components of each are of such judgements that mastery of the semantics of "self-regulatory" content must be called upon to explain. Identification component are, of course, immune to error through misidentification.

It is also important to stress how the redundancy and the deflationary theory of self-consciousness, and any theory of self-consciousness that accords a serious role in self-consciousness to mastery of the semantics of the "self-ness," are motivated by an important principle that has governed much of the development of analytical philosophy. The principle is the principle that the analysis of thought can only continue thought, the philosophical analysis of language such that we communicate thoughts by means of language because we have an implicit understanding of the workings of language, that is, of the principle governing the use of language: It is these principles, which relate to what is open to view and mind other that via the medium of language, which endow our sentences with the senses that they carry. In order to analyse thought, therefore, it is necessary to make explicitly those principles, regulating our use of language, which we already implicitly grasp.

Still, at the core of the notion of broad self-consciousness is the recognition of what consciousness is the recognition of what developmental psychologist’s call "self-world dualism." Any subject properly described as self-conscious must be able to register the distinction between himself and the world, of course, this is a distinction that can be registered in a variety of way. The capacity for self-ascription of thoughts and experiences, in combination with the capacity to understand the world as a spatial and causally structured system of mind-independent objects, is a high-level way of registering of this distinction.

Consciousness of objects is closely related to sentience and to being awake. It is (at least) being in somewhat of a distinct informational and behavioural intention where its responsive state is for one's condition as played within the immediateness of environmental surroundings. It is the ability, for example, to process and act responsively to information about food, friends, foes, and other items of relevance. One finds consciousness of objects in creatures much less complex than human beings. It is what we (at any rate first and primarily) have in mind when we say of some person or animal as it is coming out of general anaesthesia, ‘It is regaining consciousness’ as consciousness of objects is not just any form of informational access to the world, but the knowing about and being conscious of, things in the world.

We are conscious of our representations when we are conscious, not (just) of some object, but of our representations: ‘I am seeing [as opposed to touching, smelling, tasting] and seeing clearly [as opposed too dimly].’ Consciousness of our own representations it is the ability to process and act responsively to information about oneself, but it is not just any form of such informational access. It is knowing about, being conscious of, one's own psychological states. In Nagel's famous phrase (1974), when we are conscious of our representations, it is ‘like something’ to have them. If, that which seems likely, there are forms of consciousness that do not involve consciousness of objects, they might consist in consciousness of representations, though some theorists would insist that this kind of consciousness be not of representations either (via representations, perhaps, but not of them).

The distinction just drawn between consciousness of objects and consciousness of our representations of objects may seem similar to Form's (1995) contributes of a well-known distinction between P- [phenomenal] and A- [access] consciousness. Here is his definition of ‘A-consciousness’: "A state is A-conscious if it is poised for direct control of thought and action." He tells us that he cannot define ‘P-consciousness’ in any "remotely non-circular way" but will use it to refer to what he calls "experiential properties," what it is like to have certain states. Our consciousness of objects may appear to be like A-consciousness. It is not, however, it is a form of P-consciousness. Consciousness of an object is - how else can we put it? - consciousness of the object. Even if consciousness is just informational excess of a certain kind (something that Form would deny), it is not all form of informational access and we are talking about conscious access here. Recall the idea that it is like something to have a conscious state. Other closely related ideas are that in a conscious state, something appears to one, that conscious states have a ‘felt quality’. A term for all this is phenomenology: Conscious states have a phenomenology. (Thus some philosophers speak of phenomenal consciousness here.) We could now state the point we are trying to make this way. If I am conscious of an object, then it is like something to have that object as the content of a representation.

Historically, Heidegger' theory of spatiality distinguishes three different types of space: (1) world-space, (2) regions (Gegend), and (3) Dasein's spatiality. What Heidegger calls "world-space" is space conceived as an "arena" or "container" for objects. It captures both our ordinary conception of space and theoretical space - in particular absolute space. Chairs, desks, and buildings exist "in" space, but world-space is independent of such objects, much like absolute space "in which" things exist. However, Heidegger thinks that such a conception of space is an abstraction from the spatializing conduct of our everyday activities. The things that we deal with are near or far relative to us; according to Heidegger, this nearness or farness of things is how we first become familiar with that which we (later) represent to ourselves as "space." This familiarity is what renders the understanding of space (in a "container" metaphor or in any other way) possible. It is because we act spatially, going to places and reaching for things to use, that we can even develop a conception of abstract space at all. What we normally think of as space - world-space - turns out not to be what space fundamentally is; world-space is, in Heidegger's terminology, space conceived as vorhanden. It is an objectified space founded on a more basic space-of-action.

Since Heidegger thinks that space-of-action is the condition for world-space, he must explain the former without appealing to the latter. Heidegger's task then is to describe the space-of-action without presupposing such world-space and the derived concept of a system of spatial coordinates. However, this is difficult because all our usual linguistic expressions for describing spatial relations presuppose world-space. For example, how can one talk about the "distance between you and me" without presupposing some sort of metric, i.e., without presupposing an objective access to the relation? Our spatial notions such as "distance," "location," etc. must now be re-described from a standpoint within the spatial relation of self (Dasein) to the things dealt with. This problem is what motivates Heidegger to invent his own terminology and makes his discussion of space awkward. In what follows I will try to use ordinary language whenever possible to explain his principal ideas.

The space-of-action has two aspects: regions (space as Zuhandenheit) and Dasein's spatiality (space as Existentiale). The sort of space we deal with in our daily activity is "functional" or zuhanden, and Heidegger's term for it is "region." The places we work and live-the office, the park, the kitchen, etc.-all have different regions that organize our activities and contexualize "equipment." My desk area as my work region has a computer, printer, telephone, books, etc., in their appropriate "places," according to the spatiality of the way in which I work. Regions differ from space viewed as a "container"; the latter notion lacks a "referential" organization with respect to our context of activities. Heidegger wants to claim that referential functionality is an inherent feature of space itself, and not just a "human" characteristic added to a container-like space.

In our activity, how do we specifically stand with respect to functional space? We are not "in" space as things are, but we do exist in some spatially salient manner. What Heidegger is trying to capture is the difference between the nominal expression "we exist in space" and the adverbial expression "we exist spatially." He wants to describe spatiality as a mode of our existence rather than conceiving space as an independent entity. Heidegger identifies two features of Dasein's spatiality - "de-severance" (Ent-fernung) and "directionality" (Ausrichtung).

De-severance describes the way we exist as a process of spatial self-determination by "making things available" to ourselves. In Heidegger's language, in making things available we "take in space" by "making the farness vanish" and by "bringing things close"

We are not simply contemplative beings, but we exist through concretely acting in the world - by reaching for things and going to places. When I walk from my desk area into the kitchen, I am not simply changing locations from point A to B in an arena-like space, but I am "taking in space" as I move, continuously making the "farness" of the kitchen "vanish," as the shifting spatial perspectives are opened as I go along.

This process is also inherently "directional." Every de-severing is aimed toward something or in a certain direction that is determined by our concern and by specific regions. I must always face and move in a certain direction that is dictated by a specific region. If I want to get a glass of ice tea, instead of going out into the yard, I face toward the kitchen and move in that direction, following the region of the hallway and the kitchen. Regions determine where things belong, and our actions are coordinated in directional ways accordingly.

De-severance, directionality, and regionality are three ways of describing the spatiality of a unified Being-in-the-world. As aspects of Being-in-the-world, these spatial modes of being are equiprimordial.9 10 Regions "refer" to our activities, since they are established by our ways of being and our activities. Our activities, in turn, are defined in terms of regions. Only through the region can our de-severance and directionality be established. Our object of concern always appears in a certain context and place, in a certain direction. It is because things appear in a certain direction and in their places "there" that we have our "here." We orient ourselves and organize our activities, always within regions that must already be given to us.

Heidegger's analysis of space does not refer to temporal aspects of Being-in-the-world, even though they are presupposed. In the second half of Being and Time he explicitly turns to the analysis of time and temporality in a discussion that is significantly more complex than the earlier account of spatiality. Heidegger makes the following five distinctions between types of time and temporality: (1) the ordinary or "vulgar" conception of time; this is time conceived as Vorhandenheit. (2) world-time; this is time as Zuhandenheit. Dasein's temporality is divided into three types: (3) Dasein's inauthentic (uneigentlich) temporality, (4) Dasein's authentic (eigentlich) temporality, and (5) originary temporality or "temporality as such." The analyses of the vorhanden and zuhanden modes of time are interesting, but it is Dasein's temporality that is relevant to our discussion, since it is this form of time that is said to be founding for space. Unfortunately, Heidegger is not clear about which temporality plays this founding role.

We can begin by excluding Dasein's inauthentic temporality. This mode of time refers to our unengaged, "average" way in which we regard time. It is the "past we forget" and the "future we expect," all without decisiveness and resolute understanding. Heidegger seems to consider that this mode of temporality is the temporal dimension of de-severance and directionality, since de-severance and directionality deal only with everyday actions. As such, inauthentic temporality must itself be founded in an authentic basis of some sort. The two remaining candidates for the foundation are Dasein's authentic temporality and originary temporality.

Dasein's authentic temporality is the "resolute" mode of temporal existence. An authentic temporality is realized when Dasein becomes aware of its own finite existence. This temporality has to do with one's grasp of his or her own life as a whole from one's own unique perspective. Life gains meaning as one's own life-project, bounded by the sense of one's realization that he or she is not immortal. This mode of time appears to have a normative function within Heidegger's theory. In the second half of BT he often refers to inauthentic or "everyday" mode of time as lacking some primordial quality which authentic temporality possesses.

In contrast, to the originary temporality, for which the formal structure of Dasein's temporality itself is grounded to its spatial Being-in-the-world, Dasein also exists essentially as "projection." Projection is oriented toward the future, and this outcome orientation regulates our concern by constantly realizing various possibilities. Temporality is characterized formally as this dynamic structure of "a future that makes present in the process of having been." Heidegger calls the three moments of temporality - the future, the present, and the past - the three ecstasies of temporality. This mode of time is not normative but rather formal or neutral; as Blattner argues, the temporal features that constitute Dasein's temporality describe both inauthentic and authentic temporality.

There are some passages that indicate that authentic temporality is the primary manifestation of the temporality, because of its essential orientation toward the future. For instance, Heidegger states that "temporality first showed itself in anticipatory resoluteness." Elsewhere, he argues that "the ‘time’ which is accessible to Dasein's common sense is not primordial, but arises rather from authentic temporality." In these formulations, the authentic temporality is said to found other inauthentic modes. According to Blattner, this is "by far the most common" interpretation of the status of authentic time.

However, to ague with Blattner and Haar, in that there are far more passages where Heidegger considers an originary temporality as distinct from authentic temporality, and founding for it and for Being-in-the-world as well. Here are some examples: A temporality has different possibilities and different ways of temporalizing itself. The basic possibilities of existence, the authenticity and inauthenticity of Dasein, are grounded ontologically on possible temporalizations of the temporality. Time is primordial as the temporalizing of temporality, and as such it makes possible the Constitution of the structure of care.

Heidegger's conception seems to be that it is because we are fundamentally temporal - having the formal structure of ecstatic-horizontal unity - that we can project, authentically or in authentically, our concernful dealings in the world and exist as Being-in-the-world. It is on this account that temporality is said to found spatiality. Nicholson's first alternative offers a more consistent reading. The structure of temporality should be treated as an abstraction from Dasein's Being-in-the-world, specifically from care. In this case, the content of temporality is just the past and the present and the future ways of Being-in-the-world. Heidegger's own words support this reading: "as Dasein temporalizes itself, a world is too," and "the world is neither present-at-hand nor ready-to-hand, but temporalizes itself in temporality." He also states that the zuhanden "world-time, in the rigorous sense of the existential-temporal conception of the world, belongs to temporality itself." In this reading, "temporality temporalizing itself," "Dasein's projection," and "the temporal projection of the world" are three different ways of describing the same "happening" of Being-in-the-world, which Heidegger calls "self-directive."

However, if this is the case, then the temporality does not found spatiality, except perhaps in the trivial sense that spatiality is built into the notion of care that is identified with a temporality. The sustaining of "temporality temporalizing itself" simply is the various openings of regions, i.e., Dasein's "breaking into space." Certainly, as Stroeker points out, it is true that "nearness and remoteness are spatio-temporal phenomena and cannot be conceived without a temporal moment." But this necessity does not constitute a foundation. Rather, they are equiprimordial. The addition of temporal dimensions does indeed complete the discussion of spatiality, which abstracted from time. But this completion, while it better articulates the whole of Being-in-the-world, does not show that temporality is more fundamental.

If temporality and spatiality are equiprimordial, then all of the supposedly founding relations between temporality and spatiality could just as well be reversed and still hold true. Heidegger's view is that "because Dasein as temporality is ecstatic-horizontals in its Being, it can take along with it a space for which it has made room, and it can do so farcically and constantly." But if Dasein is essentially a factical projection, then the reverse should also be true. Heidegger appears to have assumed the priority of temporality over spatiality perhaps under the influence of Kant, Husserl, or Dilthey, and then based his analyses on that assumption.

However, there may still be a way to save Heidegger's foundational project in terms of authentic temporality. Heidegger never specifically mentions authentic temporality, since he suggests earlier that the primary manifestation of temporality is authentic temporality, such a reading may perhaps be justified. This reading would treat the whole spatio-temporal structure of Being-in-the-world. The resoluteness of authenticated temporality, arising out of Dasein's own "Being-towards-death," would supply a content to temporality above and beyond everyday involvements.

Heidegger is said to have its foundations in resoluteness, Dasein determines its own Situation through anticipatory resoluteness, which includes particular locations and involvements, i.e., the spatiality of Being-in-the-world. The same set of circumstances could be transformed into a new situation with different significance, if Dasein chooses resolutely to bring that about. An authentic temporality in this case can be said to found spatiality, since Dasein's spatiality is determined by resoluteness. This reading moreover enables Heidegger to construct a hierarchical relation between temporality and spatiality within Being-in-the-world rather than going outside of it to a formal transcendental principle, since the choice of spatiality is grasped phenomenologically in terms of the concrete experience of decision.

Moreover, one might argue that according to Heidegger one's own grasp of "death" is uniquely a temporal mode of existence, whereas there is no such weighty conception involving spatiality. Death is what compels Dasein to "stand before itself in its own most potentiality-for-Being." Authentic Being-towards-death is a "Being towards a possibility - indeed, towards a distinctive possibility of Dasein itself." One could argue that notions such as "potentiality" and "possibility" are distinctively temporal, nonspatial notions. So "Being-towards-death," as temporal, appears to be much more ontologically "fundamental" than spatiality.

However, Heidegger is not yet out of the woods. I believe that labelling the notions of anticipatory resoluteness, Being-towards-death, potentiality, and possibility specifically as temporal modes of being (to the exclusion of spatiality) begs the question. Given Heidegger's phenomenological framework, why assume that these notions are only temporal (without spatial dimensions)? If Being-towards-death, potentiality-for-Being, and possibility were "purely" temporal notions, what phenomenological sense can we make of such abstract conceptions, given that these are manifestly our modes of existence as bodily beings? Heidegger cannot have in mind such an abstract notion of time, if he wants to treat authentic temporality as the meaning of care. It would seem more consistent with his theoretical framework to say that Being-towards-death is a rich spatio-temporal mode of being, given that Dasein is Being-in-the-world.

Furthermore, the interpretation that defines resoluteness as uniquely temporal suggests too much of a voluntaristic or subjectivistic notion of the self that controls its own Being-in-the-world from the standpoint of its future. This would drive a wedge between the self and its Being-in-the-world, thereby creating a temporal "inner self" which can decide its own spatiality. However, if Dasein is Being-in-the-world as Heidegger claims, then all of Dasein's decisions should be viewed as concretely grounded in Being-in-the-world. If so, spatiality must be an essential constitutive element.

Hence, authentic temporality, if construed narrowly as the mode of temporality, at first appears to be able to found spatiality, but it also commits Heidegger either to an account of time that is too abstract, or to the notion of the self far more like Sartre's than his own. What is lacking in Heidegger's theory that generates this sort of difficulty is a developed conception of Dasein as a lived body - a notion more fully developed by Merleau-Ponty.

The elements of a more consistent interpretation of an authentic temporality are present in Being and Time. This interpretation incorporates a view of "authentic spatiality" in the notion of its authenticated temporality. This would be Dasein's resolutely grasping its own spatio-temporal finitude with respect to its place and its world. Dasein is born at a particular place, lives in a particular place, dies in a particular place, all of which it can by its relation to in an authenticated process. The place Dasein lives is not a place of anonymous involvements. The place of Dasein must be there where its own potentiality-for-Being is realized. Dasein's place is thus a determination of its existence. Had Heidegger developed such a conception more fully, he would have seen that temporality is equiprimordial with thoroughly spatial and contextual Being-in-the-world. They are distinguishable but equally fundamental ways of emphasizing our finitude.

The internalized tensions within his theory leads Heidegger to reconsider his own positions. In his later period, he explicitly develops what may be viewed as a conception of authentic spatiality. For instance, in "Building Dwelling Thinking," Heidegger states that Dasein's relations to locations and to spaces inheres in dwelling, and dwelling is the basic character of our Being. The notion of dwelling expresses an affirmation of spatial finitude. Through this affirmation one acquires a proper relation to one's environment.

But the idea of dwelling is in fact already discussed in Being and Time, regarding the term "Being-in-the-world," Heidegger explains that the word "in" is derived from "in-an" - to "reside," "habit are," "to dwell." The emphasis on "dwelling" highlights the essentially "worldly" character of the self.

Thus from the beginning Heidegger had a conception of spatial finitude, but this fundamental insight was undeveloped because of his ambition to carry out the foundational project that favoured time. From the 1930's on, as Heidegger abandons the foundational project focussing on temporality, the conception of authentic spatiality comes to the fore. For example, in Discourse on Thinking Heidegger considers the spatial character of Being as "that-which-regions (die Gegnet)." The peculiar expression is a re-conceptualization of the notion of "region" as it appeared in Being and Time. Region is given an active character and defined as the "openness that surrounds us" which "comes to meet us." By giving it an active character, Heidegger wants to emphasize that region is not brought into being by us, but rather exists in its own right, as that which expresses our spatial existence. Heidegger states that "one needs to understand ‘resolve’ (Entschlossenheit) as it is understood in Being and Time: as the opening of man [Dasein] particularly undertaken by him for openness, . . . which we think of as that-which-regions." Here Heidegger is asserting an authentic conception of spatiality. The finitude expressed in the notion of Being-in-the-world is thus transformed into an authentic recognition of our finite worldly existence in later writings.

The return to the conception of spatial finitude in the later period shows that Heidegger never abandoned the original insight behind his conception of Being-in-the-world. But once committed to this idea, it is hard to justify singling out an aspect of the self - temporality - as the foundation for the rest of the structure. All of the Existentiale and zuhanden modes, which constitute the whole of Being-in-the-world, are equiprimordial, each mode articulating different aspects of a unified whole. The preference for temporality as the privileged meaning of existence reflects the Kantian residue in Heidegger's early doctrine that he later rejected as still excessively subjectivistic.
Meanwhile, it seems that it is nonetheless, natural to combine this close connection with conclusions by proposing an account of self-consciousness, as to the capacity to think "I"-thoughts that are immune to error through misidentification, though misidentification varies with the semantics of the "self" - this would be a redundant account of self-consciousness. Once we have an account of what it is to be capable of thinking "I"-thoughts, we will have explained everything distinctive about self-consciousness. It stems from the thought that what is distinctive about "I"-thoughts are that they are either themselves immune to error or they rest on further "I" - Thoughts that are immune in that way.

Once we have an account of what it is to be capable of thinking thoughts that are immune to error through misidentification, we will have explained everything about the capacity to think "I"-thoughts. As it would to claim of deriving from the thought that immunity to error through misidentification depends on the semantics of the "self."

Once, again, that when we have an account of the semantics in that we will have explained everything distinctive about the capacity to think thoughts that are immune to error through misidentification.

The suggestion is that the semantics of "self-ness" will explain what is distinctive about the capacity to think thoughts immune to error through misidentification. Semantics alone cannot be expected to explain the capacity for thinking thoughts. The point in fact, that all that there is to the capacity of think thoughts that are immune tp error is the capacity to think the sort of thought whose natural linguistic expression involves the "self," where this capacity is given by mastery of the semantics of "self-ness." Yielding, to explain what it is to master the semantics of "self-ness," especially to think thoughts immune to error through misidentification.

On this view, the mastery of the semantics of "self-ness" may be construed as for the single most important explanation in a theory of "self-consciousness."

Its quickened reformulation might be put to a defender of "redundancy" or the deflationary theory is how mastery of the semantics of "self-ness" can make sense of the distinction between "self-ness contents" that are immune to error through misidentification and the "self contents" that lack such immunity. However, this is only an apparent difficulty when one remembers that those of the "selves" content is immune to error through misidentification, because, those employing ‘"I" as object, were able in having to break down their component elements. The identification component and the predication components that for which if the composite identification components of each are of such judgements that mastery of the semantics of "self-regulatory" content must be called upon to explain. Identification component are, of course, immune to error through misidentification.

It is also important to stress how the redundancy and the deflationary theory of self-consciousness, and any theory of self-consciousness that accords a serious role in self-consciousness to mastery of the semantics of the "self-ness," are motivated by an important principle that has governed much of the development of analytical philosophy. The principle is the principle that the analysis of thought can only continue thought, the philosophical analysis of language such that we communicate thoughts by means of language because we have an implicit understanding of the workings of language, that is, of the principle governing the use of language: It is these principles, which relate to what is open to view and mind other that via the medium of language, which endow our sentences with the senses that they carry. In order to analyse thought, therefore, it is necessary to make explicitly those principles, regulating our use of language, which we already implicitly grasp.

Still, at the core of the notion of broad self-consciousness is the recognition of what consciousness is the recognition of what developmental psychologist’s call "self-world dualism." Any subject properly described as self-conscious must be able to register the distinction between himself and the world, of course, this is a distinction that can be registered in a variety of way. The capacity for self-ascription of thoughts and experiences, in combination with the capacity to understand the world as a spatial and causally structured system of mind-independent objects, is a high-level way of registering of this distinction.

Consciousness of objects is closely related to sentience and to being awake. It is (at least) being in somewhat of a distinct informational and behavioural intention where its responsive state is for one's condition as played within the immediateness of environmental surroundings. It is the ability, for example, to process and act responsively to information about food, friends, foes, and other items of relevance. One finds consciousness of objects in creatures much less complex than human beings. It is what we (at any rate first and primarily) have in mind when we say of some person or animal as it is coming out of general anaesthesia, ‘It is regaining consciousness’ as consciousness of objects is not just any form of informational access to the world, but the knowing about and being conscious of, things in the world.

We are conscious of our representations when we are conscious, not (just) of some object, but of our representations: ‘I am seeing [as opposed to touching, smelling, tasting] and seeing clearly [as opposed too dimly].’ Consciousness of our own representations it is the ability to process and act responsively to information about oneself, but it is not just any form of such informational access. It is knowing about, being conscious of, one's own psychological states. In Nagel's famous phrase (1974), when we are conscious of our representations, it is ‘like something’ to have them. If, that which seems likely, there are forms of consciousness that do not involve consciousness of objects, they might consist in consciousness of representations, though some theorists would insist that this kind of consciousness be not of representations either (via representations, perhaps, but not of them).

The distinction just drawn between consciousness of objects and consciousness of our representations of objects may seem similar to Form's (1995) contributes of a well-known distinction between P- [phenomenal] and A- [access] consciousness. Here is his definition of ‘A-consciousness’: "A state is A-conscious if it is poised for direct control of thought and action." He tells us that he cannot define ‘P-consciousness’ in any "remotely non-circular way" but will use it to refer to what he calls "experiential properties," what it is like to have certain states. Our consciousness of objects may appear to be like A-consciousness. It is not, however, it is a form of P-consciousness. Consciousness of an object is - how else can we put it? - consciousness of the object. Even if consciousness is just informational excess of a certain kind (something that Form would deny), it is not all form of informational access and we are talking about conscious access here. Recall the idea that it is like something to have a conscious state. Other closely related ideas are that in a conscious state, something appears to one, that conscious states have a ‘felt quality’. A term for all this is phenomenology: Conscious states have a phenomenology. (Thus some philosophers speak of phenomenal consciousness here.) We could now state the point we are trying to make this way. If I am conscious of an object, then it is like something to have that object as the content of a representation.

Some theorists would insist that this last statement be qualified. While such a representation of an object may provide everything that a representation has to have for its contents to be like something to me, they would urge, something more is needed. Different theorists would add different elements. For some, I would have to be aware, not just of the object, but of my representation of it. For others, I would have directorial implications that infer of the certain attentive considerations to its way or something other than is elsewhere. We cannot go into this controversy here. As, we are merely making the point that consciousness of objects is more than Form's A-consciousness.

Consciousness self involves, not just consciousness of states that it is like something to have, but consciousness of the thing that has them, i.e., of ones-self. It is the ability to process and act responsively to information about oneself, but again it is more than that. It is knowing about, being conscious of, oneself, indeed of itself as itself. And consciousness of oneself in this way it is often called consciousness of self as the subject of experience. Consciousness of oneself as oneself seems to require indexical adeptness and by preference to a special indexical ability at that, not just an ability to pick out something out but to pick something out as oneself. Human beings have such self-referential indexical ability. Whether any other creatures have, it is controversial. The leading nonhuman candidate would be chimpanzees and other primates whom they have taught enough language to use first-person pronouns.

The literature on consciousness sometimes fails to distinguish consciousness of objects, consciousness of one's own representations, and consciousness of self, or treat one three, usually consciousness of one's own representations, as actualized of its owing totality in consciousness. (Conscious states do not have objects, yet is not consciousness of a representation either. We cannot pursue that complication here.) The term ‘conscious’ and cognates are ambiguous in everyday English. We speak of someone regaining consciousness - where we mean simple consciousness of the world. Yet we also say things like, She was haphazardly conscious of what motivated her to say that - where we do not mean that she lacked either consciousness of the world or consciousness of self but rather than she was not conscious of certain things about herself, specifically, certain of her own representational states. To understand the unity of consciousness, making these distinctions is important. The reason is this: the unity of consciousness takes a different form in consciousness of self than it takes in either consciousness of one's own representations or consciousness of objects.

So what is unified consciousness? As we said, the predominant form of the unity of consciousness is being aware of several things at the same time. Intuitively, this is the notion of several representations being aspects of a single encompassing conscious state. A more informative idea can be gleaned from the way philosophers have written about unified consciousness. As emerging from what they have said, the central feature of unified consciousness is taken to be something like this unity of consciousness: A group of representational relations related to each other that to be conscious of any of them is to be conscious of others of them and of the group of them as a single group.

In order for science to be rigorous, Husserl claimed that mind must ‘intend’ itself as subject and also all its ‘means’. The task of philosophy, also, is so, that in to substantiate that science is, in fact, rigorous by clearly distinguishing, naming, and taxonomizing phenomena. What William James termed the stream of consciousness was dubbed by Husserl the system of experience. Recognizing, as James did, that consciousness is contiguous, Husserl eventually concluded that any single mental phenomenon is a moving horizon receding in all directions at once toward all other phenomena.

Interesting enough, this created an epistemological dilemma that became pervasive in the history of postmodern philosophy. the dilemma is such that if mind ‘intends’ itself as subject and objects within this mind are moving in all directions toward all other objects, how can any two minds objectively agree that they are referring to the same object? The followers of Husserl concluded that this was not possible, therefore, the prospect that two minds can objectively or inter-subjectively know the same truth is annihilated.

Ever so, that it is ironic, least of mention, that Husserl’s attempt to establish a rigorous basis for science in human consciousness served to reinforce Nietzsche’s claim that truths are evolving fictions that exist only in the subjective reality of single individuals. And it also massively reinforced the stark Cartesian division between mind and world by seeming to legitimate the view that logic and mathematical systems reside only in human subjectivity and, therefore, that there is no real or necessary correspondence of physical theories with physical reality. These views would later be embarked by Ludwig Wittgenstein and Jean-Paul Sartre.

One of Nietzsche’s fundamental contentions was that traditional value (represented primarily by Christianity) had lost their power in the lives of individuals. He expressed this in his proclamation "God is dead." He was convinced that traditional values represented "slave morality," such that it was the characterological underpinning with which succeed too weakly and resentful individually created morality. Who encouraged such behaviour as gentleness and kindness because the behaviour served their interests?

By way of introducing some of Nietzsche’s written literature, which it may as such, by inclination alone be attributively contributive that all aspiration’s are in fact the presentation of their gestural point reference. A few salient points that empower Nietzsche as the "great critic" of that tradition, in so that by some meaningfully implication, is to why this critique is potentially so powerful and yet as provocative by statements concerting the immediacy of its topic.

Although enwrapped in shrouds his guising shadow that which we can identify Nietzsche in a decisive challenge to the past, from one point of view there should be nothing too remarkably new about what Nietzsche is doing, least of mention, his style of doing so is very intriguing yet distinctive. For him, undertaking to characterized methods of analysis and criticism, under which we should feel quite familiar with, just as the extracted forms of familiarity are basic throughout which contextual matters of representation have previously been faced. He is encouraging as a new possibility for our lives of a program that has strong and obvious roots in certain forms of Romanticism. Thus, is to illustrate how the greater burden of tradition, as he is deeply connected to categorical priorities as in the finding that considerations for which create tradition.

Irish philosopher and clergyman George Berkeley set out to challenge what he saw as the atheism and skepticism inherent in the prevailing philosophy of the early 18th century. His initial publications, which asserted that no objects or matter existed outside the human mind, were met with disdain by the London intelligentsia of the day. Berkeley aimed to explain his "Immaterialist" theory, part of the school of thought known as idealism.

The German philosopher Immanuel Kant tried to solve the crisis generated by Locke and brought to a climax by Hume; his proposed solution combined elements of rationalism with elements of empiricism. He agreed with the rationalists that one can have an exact and certain opening for knowledge, but he followed the empiricists in holding that such knowledge is more informative about the structure of thought than about the worlds’ outside thought. He distinguished three kinds of knowledge, analytical deductions, for which is exact and certain but uninformative, because it makes clear only what is contained in definitions; Synthetic empirically, which conveys information about the world learned from experience, but is subject to the errors of the senses. Theoretical synthetics, which are discovered by pure intuitive certainty, are both exact and understanding. Its expressions are the necessary conditions that the mind imposes on all objects of experience. Mathematics and philosophy, according to Kant, provide this last. Since the time of Kant, one of the most frequently argued questions in philosophy has been whether or not such a thing as theoretic synthetical knowledge really exists.

Because of the diversity of positions associated with existentialism, the term is impossible to define precisely. Certain themes common to nearly all existentialist writers can, however, be identified. The term itself suggests one major theme: the stress on concrete individual existence and, consequently, on subjectivity, individual freedom, and choice.

Most philosophers since Plato have held that the highest ethical good are the same for everyone; as far as one is to approach moral perfection, one resembles other morally perfect individuals. The 19th-century Danish philosopher Søren Kierkegaard, who was the first writer to call himself existential, reacted against this tradition by insisting that the highest good for the individual are to find his or her own unique vocation. As he wrote in his journal, "I must find a truth that is true for me . . . the idea for which I can live or die." Other existentialist writers have echoed Kierkegaard's belief that one must choose one's own way without the aid of universal, objective standards. Against the traditional view that moral choice involves an objective judgment of right and wrong, existentialists have argued that no objective, rational basis can be found for moral decisions. The 19th-century German philosopher Friedrich Nietzsche additionally contended with an individuality that must define for which situations are to count as moral situations.

All existentialists have followed Kierkegaard in stressing the importance of passionate individual action in deciding questions of both morality and truth. They have insisted, accordingly, that personal experience and acting on one's own convictions are essential in arriving at the truth. Thus, the understanding of a situation by someone involved in that situation is superior to that of a detached, objective observer. This emphasis on the perspective of the individual agent has also made existentialists suspicious of systematic reasoning. Kierkegaard, and other existentialist writers have been deliberately unsystematic in the exposition of their philosophies, preferring to express themselves in aphorisms, dialogues, parables, and other literary forms. Despite their antirationalist position, however, most existentialists cannot be said to be irrationalists in the sense of denying all validity to rational thought. They have held that rational clarity is desirable wherever possible, but that the most important questions in life are not accessible for reason and the accessible knowledge as cohered by supporting structures of scientific understanding, in that they have argued that even science is not as rational as is commonly supposed. For instance, asserted that the scientific assumption of an orderly universe is for the most part a worthwhile rationalization.

Perhaps the most prominent theme in existentialist writing is that of choice. Humanity's primary distinction, in the view of most existentialists, is the freedom to choose. Existentialists have held that human beings do not have a fixed nature, or essence, as other animals and plants do: Yet, to every human that make choices that create his or her own natures embark upon the dogma that which, in its gross effect, formulates his or hers existential decision of choice. That if, one might unduly sway to consider in having to embody the influences that persuade one’s own self to frowardly acknowledge the fact of an existence that precedes the idealization pertaining to its essences. Choice is therefore central to human existence, and it is inescapable; even the refusal to choose is a choice. Freedom of choice entails commitment and responsibility. Because individuals are free to choose their own path, existentialists have argued, they must accept the risk and responsibility of following their commitment wherever it leads.

Kierkegaard held that recognizing that one experience is spiritually crucial not only a fear of specific objects but also a feeling of general apprehension, which he called dread. He interpreted it as God's way of calling each individual to agree to a personally valid way of life. The word anxiety (German Angst) has a similarly crucial role in the work of the 20th-century German philosopher Martin Heidegger - anxiety leads to the individual's confrontation with nothingness and with the impossibility of finding ultimate justification for the choices he or she must make. In the philosophy of Sartre, the word nausea is used for the individual's recognition of the pure contingency of the universe, and the word anguish is used for the recognition of the total freedom of choice that confronts the individual at every moment.

Existentialism as a distinct philosophical and literary movement belongs to the 19th and 20th centuries. However, elements of existentialism can be found in the thought (and life) of Socrates, in the Bible, and in the work of many pre-modern philosophers and writers.

The first to anticipate the major concerns of modern existentialism was the 17th-century French philosopher Blaise Pascal. Pascal rejected the rigorous rationalism of his contemporary René Descartes, asserting, in his Pensées (1670), that a systematic philosophy that presumes to explain God and humanity is a form of pride. Like later existentialist writers, he saw human life as for paradoxes: The human self, which combines mind and body, is itself a paradox and contradiction.

Nineteenth-century Danish philosopher Søren Kierkegaard played a major role in the development of existentialist thought. Kierkegaard criticized the popular systematic method of rational philosophy advocated by German Georg Wilhelm Friedrich Hegel. He emphasized the absurdity inherent in human life and questioned how any systematic philosophy could apply to the ambiguous human condition. In Kierkegaard’s deliberately unsystematic works, he explained that each individual should attempt an intense examination of his or her own existence.

Kierkegaard, generally regarded as the founder of modern existentialism, reacted against the systematic absolute idealism of the 19th-century German philosopher Georg Wilhelm Friedrich Hegel, who claimed to have worked out a total rational understanding of humanity and history. Kierkegaard, on the contrary, stressed the ambiguity and absurdity of the human situation. The individual's response to this situation must be to live a totally committed life, and this commitment can only be understood by the individual who has made it. The individual, therefore, must always be prepared to defy the norms, least of mention, for which any if not all sociological associations that bring of some orientation, that for the sake of the higher persuasion brings the possible that implicate of a personally respective way of life. Kierkegaard ultimately advocated a "leap of faith" into a Christian way of life, which, although hard to grasp and fully in the risk of which was the only commitment he believed could save the individual from despair.

Danish religious philosopher Søren Kierkegaard rejected the all-encompassing, analytical philosophical systems of such 19th-century thinkers as German philosopher G.W.F. Hegel. Instead, Kierkegaard focussed on the choices the individual must make in all aspects of his or her life, especially the choice to maintain religious faith. The literaturized work of Fear and Trembling, 1846 and translated, 1941, Kierkegaard explored the conceptual representations of faith through which an examination of the biblical story of Abraham and Isaac, under which God demanded that Abraham show by his proving of faith by sacrificing his son.

One of the most controversial works of 19th-century philosophy, Thus Spake Zarathustra (1883-1885) articulated through Friedrich Nietzsche’s theory of the Übermensch, a term translated as "Superman" or "Overman." The Superman was an individual who overcame what termed the "slave morality" of traditional values, and lived according to his own morality. Who also advanced his idea that "God is dead," or that traditional morality was no longer relevant in people’s lives. In the sage Zarathustra came down from the mountain where he had spent the last ten years alone to preach to the people.

Nietzsche, who was not conversant with the functional dynamics that were the contributive peculiarities for which their premise is attributable to Kierkegaard. The influence of the subsequential existentialist thought, only through his criticism of traditional metaphysical and moral assumptions and through his espousal of tragic pessimism and the life-affirming individual will that opposes itself to the moral conformity of the majority. In contrast to Kierkegaard, whose attack on conventional morality led him to advocate a radically individualistic Christianity, proclaimed the "death of God" and went on to reject the entire Judeo-Christian moral tradition in favour of a heroic pagan ideal.

The "will" (philosophy and psychology), is the capacity to choose among alternative courses of action and to act on the choice made, particularly when the action is directed toward a specific goal or is governed by definite ideals and principles of conduct? Bestowing the consignment of willed behaviour contrasts with behaviour stemming from instinct, impulse, reflex, or habit, none, of which involves conscious choice among alternatives. Again, a consigning of willed behaviour contrasts with the vacillations manifested by alternating choices among conflicting alternatives.

Until the 20th century most philosophers conceived the will as a separate faculty with which every person is born. They differed, however, about the role of this faculty in the personality makeup. For one school of philosophers, most notably represented by the German philosopher Arthur Schopenhauer, universal will-power is the primary reality, and the individual's will forms part of it. In his view, the will dominates every other aspect of an individual's personality, knowledge, feelings, and direction in life. A contemporary form of Schopenhauer's theory is implicit in some forms of existentialism, such as the existentialist view expressed by the French philosopher Jean-Paul Sartre, which regards personality as the desire to action, and actions as they are the manifestations of the will for which gives meaning to the universe.

Most other philosophers have regarded the will as coequal or secondary to other aspects of personality. Plato believed that the psyche is divided into three parts: Reason, will, and desire, for rationalist philosophers, such as Aristotle, Thomas Aquinas, and René Descartes. The will is the agent of the rational soul in governing purely animal appetites and passions. Some empirical philosophers, such as David Hume, discount the importance of rational influences upon the will; They think of the will as ruled mainly by emotion. Evolutionary philosophers, such as Herbert Spencer, and pragmatist philosophers, such as John Dewey, conceive the will not as an innate faculty but as a product of experience evolving gradually as the mind and personality of the individual development in social interaction.

Modern psychologists tend to accept the pragmatic theory of the will. They regard the will as an aspect or quality of behaviour, than as a separate faculty. It is the whole person who wills. This act of willing is manifested by (1) the fixing of attention on distant goals and abstract standards and principles of conduct; (2) the weighing of alternative courses of action and the taking of deliberate action that seems best calculated serving specific goals and principles; (3) the inhibition of impulses and habits that might distract attention from, or otherwise conflict with, a goal or principle; and (4) perseverance against deterrents and the obstruction, that within one’s pursuit of goals or adherence is given into the characteristic principles.

The modern philosophy movements of phenomenology and existentialism have been greatly influenced by the thought of German philosopher Martin Heidegger. According to Heidegger, humankind has fallen into a crisis by taking a narrow, technological approach to the world and by ignoring the larger question of existence. People, if they wish to live authentically, must broaden their perspectives. Instead of taking their existence for granted, people should view themselves as part of Being (Heidegger's term for that which underlies all existence).

Heidegger, like Pascal and Kierkegaard, reacted against an attempt to put philosophy on a conclusive rationalistic basis - as Max Scheler (1874-1928), the German social and religious philosopher, whose work reflected the influence of the phenomenology of his countryman Edmund Husserl. Born in Munich, Scheler taught at the universities of Jena, Munich, and Cologne. In The Nature of Sympathy, 1913 translated 1970, he applied Husserl's method of detailed phenomenological description to the social emotions that relate human beings to one another - especially love and hate. This book was followed by his most famous work, Formalism in Ethics and Non-Formal Ethics of Values, 1913, and translated 1973, a two-volume study of ethics in which he criticized the formal ethical approach of the German philosopher Immanuel Kant and substituted for it a study of specific values as they directly present themselves to consciousness. Scheler converted to Roman Catholicism in 1920 and wrote On the Eternal in Man, 1921 and translated 1960, to justify his conversion, followed by an important study of the sociology of knowledge, Die Wissensformen und die Gesellschaft (Forms of Knowledge and Society, 1926). Later he rejected Roman Catholicism and developed a philosophy, based on science, in which all abstract knowledge and religious values are considered sublimations of basic human drives. This is presented in his last book, The Place of Man in the Universe, 1928 translated 1961.

Phenomenology of the 20th-century German philosopher Edmund Husserl. Heidegger argued that humanity finds itself in an incomprehensible and indifferent world. Human beings can never hope to understand why they are here; Instead, each individual must choose a goal and follow it with passionate conviction, aware of the certainty of death and the ultimate meaninglessness of one's life. Heidegger contributed to existentialist thought an original emphasis on Being and ontology and on language.

The subjects treated in Aristotle's Metaphysics (substance, causality, the nature of being, and the existence of God) fixed the content of metaphysical speculation for centuries. Among the medieval Scholastic philosophers, metaphysics were known as the "transphysical science" on the assumption that, by means of it, the scholar philosophically could make the transition from the physical world to a world beyond sense perception. The 13th-century Scholastic philosopher and theologian St. Thomas Aquinas declared that the cognition of God, through a causal study of finite sensible beings, was the aim of metaphysics. With the rise of scientific study in the 16th century the reconciliation of science and faith in God became an increasingly important problem.

The Irish-born philosopher and clergyman George Berkeley (1685-1753) argued that everything, that human beings were to conceive of exists as an idea in a mind, a philosophical focus that is idealism. Berkeley reasoned that because one cannot control one’s thoughts, they must come directly from a larger mind: That of God. In his treatise, Concerning the Principles of Human Knowledge, written in 1710, Berkeley explained why he believed that it is "impossible . . . that there should be any such thing as an outward object."

Before the time of the German philosopher Immanuel Kant’s metaphysics was characterized by a tendency to construct theories based on deductive knowledge, that is, knowledge derived from reason alone, in the contradistinction to empirical knowledge, which is gained by reference to the facts of experience. From theoretical knowledge were deduced general propositions held to be true of all things. The method of inquiry based on deductive principles is known as rationalistic. This method may be subdivided into monism, which holds that the universe is made up of a single fundamental substance: Dualism, is nonetheless, the belief in two such substances, and pluralism, which proposes the existence of many fundamental substances.

In the 5th and 4th centuries Bc, Plato postulated the existence of a realm of Ideas that the varied objects of common experience imperfectly reflect. He maintained that these ideal Forms are not only more clearly intelligible but also more real than the transient and essentially illusory objects themselves.

George Berkeley is considered the founder of idealism, the philosophical view that all physical objects are dependent on the mind for their existence. According to Berkeley's early 18th-century writing, an object such as a table exists only if a mind is perceiving it. Therefore, objects are ideas.

Berkeley speculated that all aspects of everything of which one is conscious are reducible to the ideas present in the mind. The observer does not conjure external objects into existence, however, the true ideas of them are caused in the human mind directly by God. Eighteenth-century German philosopher Immanuel Kant greatly refined idealism through his critical inquiry into what he believed to be the limit of possible knowledge. Kant held that all that can be known of things is the way in which they appear in experience, there is no way of knowing what they are substantially in themselves. He also held, however, that the fundamental principles of all science are essentially grounded in the constitution of the mind than being derived from the external world.

George Berkeley, argued, that all naturalized associations brought upon the human being to conceive of existent and earthly ideas within the mind, a philosophical focus that is known as idealism.

Trying to develop an all-encompassing philosophical system, German philosopher Georg Wilhelm Friedrich Hegel wrote on topics ranging from logic and history to art and literature. He considered art to be one of the supreme developments of spiritual and absolute knowledge, surpassed only by religion and philosophy. In his excerpt from Introductory Lectures on Aesthetics, which were based on lectures that Hegel delivered between 1820 and 1829, Hegel discussed the relationship of poetry to other arts, particularly music, and explained that poetry was one mode of expressing the "Idea of beauty" that Hegel believed resided in all art forms. For Hegel, poetry was "the universal realization of the art of the mind."

Nineteenth-century German philosopher Georg Wilhelm Friedrich Hegel disagreed with Kant's theory concerning the inescapable human ignorance of what things are in themselves, instead arguing for the ultimate intelligibility of all existence. Hegel also maintained that the highest achievements of the human spirit (culture, science, religion, and the state) are not the result of naturally determined processes in the mind, but are conceived and sustained by the dialectical activity.

Hegel applied the term dialectic to his philosophic system. Hegel believed that the evolution of ideas occurs through a dialectical process - that is, a conceptual lead to its opposite, and because of this conflict, a third view, the synthesis, arises. The synthesis is at a higher level of truth than the first two views. Hegel's work is based on the idealistic conceptualized representation of a universal mind that, through evolution, seeks to arrive at the highest level of self-awareness and freedom.

German political philosopher Karl Marx applied the conceptualize representation of dialectic social and economic processes. Marx's so-called dialectical materialism, frequently considered a revision of the Hegelian, dialectic of free, reflective intellect. Additional strains of idealistic thought can be found in the works of 19th-century Germans Johann Gottlieb Fichte and F.W.J. Schelling, 19th-century Englishman F.H. Bradley, 19th-century Americans Charles Sanders Peirce and Josiah Royce, and 20th-century Italian Benedetto Croce.

The monists, agreeing that only one basic substance exists, differ in their descriptions of its principal characteristic. Thus, in idealistic monism the substance is believed to be purely mental; in materialistic monism it is held to be purely physical, and in neutral monism it is considered neither exclusively mental nor solely physical. The idealistic position was held by the Irish philosopher George Berkeley, the materialistic by the English philosopher Thomas Hobbes, and the neutral by the Dutch philosopher Baruch Spinoza. The latter expounded a pantheistic view of reality in which the universe is identical with God and everything contains God's substance.

George Berkeley set out to challenge what he saw as the atheism and skepticism inherent in the prevailing philosophy of the early 18th century. His initial publications, which asserted that no objects or matter existed outside the human mind, were met with disdain by the London intelligentsia of the day. Berkeley aimed to explain his "Immaterialist theory, is part of the school of thought known as idealism, to a more general audience in Three Dialogues between Hylas and Philonous (1713).

The most famous exponent of dualism was the French philosopher René Descartes, who maintained that body and mind are radically different entities and that they are the only fundamental substances in the universe. Dualism, however, does not show how these basic entities are connected.

In the work of the German philosopher Gottfried Wilhelm Leibniz, the universe is held to consist of many distinct substances, or monads. This view is pluralistic in the sense that it proposes the existence of many separate entities, and it is monistic in its assertion that each monad reflects within itself the entire universe.

Other philosophers have held that knowledge of reality is not derived from some deductive principles, but is obtained only from experience. This type of metaphysic is called empiricism. Still another school of philosophy has maintained that, although an ultimate reality does exist, it is altogether inaccessible to human knowledge, which is necessarily subjective because it is confined to states of mind. Knowledge is therefore not a representation of external reality, but merely a reflection of human perceptions. This, nonetheless, is basically known as skepticism or agnosticism, in that their appreciation of the soul and the reality of God.

Immanuel Kant had circulated his thesis on, The Critique of Pure Reason in 1781. Three years later he expanded on his study of the modes of thinking with an essay entitled "What is Enlightenment?" In this 1784 essay, Kant challenged readers to "dare to know," arguing that it was not only a civic but also a moral duty to exercise the fundamental freedoms of thought and expression.

Several major viewpoints were combined in the work of Kant, who developed a distinctive critical philosophy called Transcendentalism. His philosophy is agnostic in that it denies the possibility of a strict knowledge of ultimate reality; it is empirical in that it affirms that all knowledge arises from experience and is true of objects of actual and possible experience and it is rationalistic in that it maintains the deductive character of the structural principles of this empirical knowledge.

These principles are held to be necessary and universal in their application to experience, for in Kant's view the mind furnishes the archetypal forms and categories (space, time, causality, substance, and relation) to its sensations, and these categories are logically anterior to experience, although manifested only in experience. Their logical anteriority to comprehend an experience only makes these categories or structural principle’s transcendental. They transcend all experience, both actual and possible. Although these principles determine all experience, they do not in any way affect the nature of things in themselves. The knowledge of which these principles are the necessary conditions must not be considered, therefore, as constituting a revelation of things as they are in themselves. This knowledge concerns things only as far as they appear to human perception or as they can be apprehended by the senses. The argument by which Kant sought to fix the limits of human knowledge within the framework of experience and to demonstrate the inability of the human mind to penetrate beyond experience strictly by knowledge to the realm of ultimate reality makes up the critical feature of his philosophy, giving the key word to the titles of his three leading treatises, Critique of Pure Reason, Critique of Practical Reason, and Critique of Judgment. In the system propounded in these works, Kant sought also to reconcile science and religion in a world of two levels, comprising noumena, objects conceived by reason although not perceived by the senses, and phenomena, things as they appear to the senses and are accessible to material study. He maintained that, because God, freedom, and human immortality are noumenal realities, these conceptualized understandings were brought through the moral faith than through scientific knowledge. With the continuous development of science, the expansion of metaphysics to include scientific knowledge and methods became one of the major objectives of metaphysicians.

Some of Kant's most distinguished followers, notably Johann Gottlieb Fichte, Friedrich Schelling, Georg Wilhelm Friedrich Hegel, and Friedrich Schleiermacher, negated Kant's criticism in their elaborations of his transcendental metaphysics by denying the Kantian conception of the thing-in-itself. They thus developed an absolute idealism opposing Kant's critical transcendentalism.

Since the formation of the hypothesis of absolute idealism, the development of metaphysics has resulted in as many types of metaphysical theory as existed in pre-Kantian philosophy, despite Kant's contention that he had fixed definitely the limits of philosophical speculation. Notable among these later metaphysical theories is radical empiricism, or pragmatism, a native American form of metaphysics expounded by Charles Sanders Peirce, developed by William James, and adapted as instrumentalism by John Dewey; voluntarism, the foremost exponents of which are the German philosopher Arthur Schopenhauer and the American philosopher Josiah Royce; phenomenalism, as it is exemplified in the writings of the French philosopher Auguste Comte and the British philosopher Herbert Spencer, emergent evolution, or creative evolution, originated by the French philosopher Henri Bergson; and the philosophy of the organism, elaborated by the British mathematician and philosopher Alfred North Whitehead. The salient doctrines of pragmatism are that the chief function of thought is to guide action, that the meaning of concepts is to be sought in their practical applications, and that truth should be tested by the practical effects of belief; According to instrumentalism, ideas are instruments of action, and their truth is determined by their role in human experience. In the theory of voluntarism suspects that Will is postulated as the supreme manifestation of reality. The exponents of phenomenalism, who are sometimes called positivists, contend that everything can be analysed in actual or possible occurrences, or phenomena, and that anything that cannot be analysed in this manner cannot be understood. In emergent or creative evolution, the evolutionary process is characterized as spontaneous and unpredictable than mechanistically determined. The philosophy of the organism combines an evolutionary stress on constant process with a metaphysical theory of God, the eternal objects, and creativity.

In the 20th century the validity of metaphysical thinking has been disputed by the logical positivists and by the so-called dialectical materialism of the Marxists. The basic principle maintained by the logical positivists is the verifiability theory of meaning. According to this theory, a sentence has factual meaning only if it meets the test of observation. Logical positivists argue that metaphysical expressions such as "Nothing exists except material particles" and "Everything is part of one all-encompassing spirit" cannot be tested empirically. Therefore, according to the verifiability theory of meaning, these expressions have no factual cognitive meaning, although they can have an emotive meaning about human hopes and feelings.

The dialectical materialists assert that the mind is conditioned by and reflects material reality. Therefore, speculations that conceive of constructs of the mind as having any other than material reality are themselves strangling unreal and can result only in delusion. To these assertions metaphysicians reply by denying the adequacy of the verifiability theory of meaning and of material perception as the standard of reality. Both logical positivism and dialectical materialism, they argue, conceal metaphysical assumptions, for example, that everything is observable or at least connected with something observable and that the mind has no distinctive life of its own. In the philosophical movement known as existentialism, thinkers have contended that the questions of the nature of being and of the individual's relationship to it are extremely important and meaningful concerning human life. The investigation of these questions is therefore considered valid of whether or not its results can be verified objectively.

Since the 1950s the problems of systematic analytical metaphysics have been studied in Britain by Stuart Newton Hampshire and Peter Frederick Strawson, the former concerned, in the manner of Spinoza, with the relationship between thought and action, and the latter, in the manner of Kant, with describing the major categories of experience as they are embedded in language. In the United States, metaphysics have been pursued much in the spirit of positivism by Wilfred Stalker Sellars and Willard Van Orman Quine, wherefore Sellars has aspired to express metaphysical questions in linguistic terms, and Quine has attempted to decide whether the structure of language commits the philosopher to asserting the existence of any entities whatever and, if so, what kind. In these new formulations the issues of metaphysics and ontology remain vital.

Twentieth-century French intellectual Jean-Paul Sartre helped to develop existential philosophy through his writings, novels, and plays. Considerable amounts of Sartre’s workings focuses on the dilemma of choice faced by free individuals and on the challenge of creating meaning by acting responsibly in an indifferent world. In stating that "man is condemned to be free," Sartre reminds us of the responsibility that accompanies human decisions.

Sartre first gave the term existentialism general currency by using it for his own philosophy and by becoming the leading figure of a distinct movement in France that became internationally influential after World War II. Sartre's philosophy is explicitly atheistic and pessimistic; He declared that human beings require a rational basis for their lives but are unable to achieve one, and thus human life is a "futile passion." Sartre nevertheless, insisted that his existentialism be a form of humanism, and he strongly emphasized human freedom, choice, and responsibility. He eventually tried to reconcile these existentialist concepts with a Marxist analysis of society and history. Because, for Heidegger, one is what one does in the world, a phenomenological reduction to one's own private experience is impossible; and because human action consists of a direct grasp of objects, it is not necessary to posit a special mental entity called a meaning to account for intentionality. For Heidegger, being thrown into the world among things in the act of realizing projects is a more fundamental kind of intentionality than that revealed in merely staring at or thinking about objects, and it is this more fundamental intentionality that makes possible the directedness analysed by Husserl.

In the mid-1900s, French existentialist Jean-Paul Sartre attempted to adapt Heidegger's phenomenology to the philosophy of consciousness, in effect returning to the approach of Husserl. Sartre agreed with Husserl that consciousness is always directed at objects but criticized his claim that such directedness is possible only by means of special mental entities called meanings. The French philosopher Maurice Merleau-Ponty rejected Sartre's view that phenomenological description reveals human beings to be pure, isolated, and free consciousnesses. He stressed the role of the active, involved body in all human knowledge, thus generalizing Heidegger's insights to include the analysis of perception. Like Heidegger and Sartre, Merleau-Ponty is an existential phenomenologist, in that he denies the possibility of bracketing existence.

In the treatise Being and Nothingness, French writer Jean-Paul Sartre presents his existential philosophical framework. He reasons that the essential nothingness of human existence leaves individuals to take sole responsibility for their own actions. Shunning the morality and constraints of society, individuals must embrace personal responsibility to craft a world for themselves. Along with focussing on the importance of exercising individual responsibility, Sartre stresses that the understanding of freedom of choice is the only means of authenticating human existence. A novelist and playwright as well as a philosopher, Sartre will become a leader of the modern existentialist movement.

Although existentialist thought encompassing the uncompromising atheism of Nietzsche and Sartre and the agnosticism of Heidegger, its origin in the intensely religious philosophies of Pascal and Kierkegaard, foreshadowed its profound influence on 20th-century theologies. The 20th-century German philosopher Karl Jaspers, although he rejected explicit religious doctrines, influenced a contemporary theology through his preoccupation with transcendence and the limits of human experience. The German Protestant theologian’s Paul Tillich and Rudolf Bultmann, the French Roman Catholic theologian Gabriel Marcel, the Russian Orthodox philosopher Nikolay Berdyayev, and the German Jewish philosopher Martin Buber inherited many of Kierkegaard's concerns, especially that a personal sense of authenticity and commitment is essential to religious faith.

Renowned as one of the most important writers in world history, 19th-century Russian author Fyodor Dostoyevsky wrote psychologically intense novels that probed the motivations and moral justifications for his characters’ actions. Dostoyevsky commonly addressed themes such as the struggle between good and evil within the human soul and the idea of salvation through suffering. The Brothers Karamazov (1879-1880), generally considered Dostoyevsky’s best work, interlaces religious exploration with the story of a family’s violent quarrels over a woman and a disputed inheritance.

Twentieth-century writer and philosopher Albert Camus examined what he considered the tragic inability of human beings to understand and transcend their intolerable conditions. In his work Camus presented an absurd and seemingly unreasonable world in which some people futilely struggle to find meaning and rationality while others simply refuse to care. For example, the main character of The Stranger (1942) kills a man on a beach for no reason and accepts his arrest and punishment with a dispassion. In contrast, in The Plague (1947), Camus introduces characters who act with courage in the face of absurdity.

Several existentialist philosophers used literary forms to convey their thought, and existentialism has been as vital and as extensive a movement in literature as in philosophy. The 19th-century Russian novelist Fyodor Dostoyevsky is probably the greatest existentialist literary figure. In Notes from the Underground (1864), the alienated antihero rages against the optimistic assumptions of rationalist humanism. The view of human nature that emerges in this and other novels of Dostoyevsky is that it is unpredictable and perversely self-destructive; Only Christian love can save humanity from itself, but such love cannot be understood philosophically. As the character Alyosha says in The Brothers Karamazov (1879-80), "We must love life more than the meaning of it."

The unfolding narrations that launch the chronological lines are attributed to the Russian novelist Fyodor Dostoyevsky’s Notes from Underground (1864) - "I am a sick man . . . I am a spiteful man"- are among the most famous in 19th-century literature. Published five years after his release from prison and involuntary, military service in Siberia, Notes from Underground is a sign of Dostoyevsky’s rejection of the radical social thinking he had embraced in his youth. The unnamed narrator is antagonistic in tone, questioning the reader’s sense of morality plus the foundations of rational thinking.

In the 20th century, the novels of the Austrian Jewish writer Franz Kafka, such as The Trial 1925, translated, 1937, and The Castle (1926, translated, 1930), present isolated men confronting vast, elusive, menacing bureaucracies; Kafka's themes of anxiety, guilt, and solitude reflect the influence of Kierkegaard, Dostoyevsky, and, the influence of Nietzsche is also discernible in the novels of the French writer’s André Malraux and in the plays of Sartre. The work of the French writer Albert Camus is usually associated with existentialism because of the prominence of such themes as the apparent absurdity and futility of life, the indifference of the universe, and the necessity of engagement in a just cause. Existentialist themes are also reflected in the theatre of the absurd, notably in the plays of Samuel Beckett and Eugène Ionesco. In the United States, the influence of existentialism on literature has been more indirect and diffused, traces of Kierkegaard's thought can be found in the novels of Walker Percy and John Updike, and various existentialist themes are apparent in the work of such diverse writers as Norman Mailer, John Barth, and Arthur Miller.

Nietzsche’s concept has often been interpreted as one that postulates a master-slave society and has been identified with totalitarian philosophies. Many scholars deny the connection and attribute it to misinterpretation of Nietzsche 's work.

For him, an undertaking to characterize its method of analysis and criticism, under which we should feel quite familiar with, just as the extracted forms of familiarity are basic throughout which contextual matters of representation have previously been faced. He is encouraging as a new possibility for our lives a program that has strong and obvious roots in certain forms of Romanticism. Thus, is to illustrate how Nietzsche, the greater burden of tradition, as he is deeply connected to categorical priorities as to finding the considerations of which make of tradition.

Yet, Kant tried to solve the crisis generated by Locke and brought to a climax by Hume; his proposed solution combined elements of rationalism with elements of empiricism. He agreed with the rationalists that one can have an exact and certain opening for knowledge, but he followed the empiricists in holding that such knowledge is more informative about the structure of thought than about the world outside thought.

During the 19th century, the German philosopher Georg Wilhelm Friedrich Hegel revived the rationalist claim that absolutely certain knowledge of reality can be obtained by equating the processes of thought, of nature, and of history. Hegel inspired an interest in history and a historical approach to knowledge by Herbert Spencer in Britain and by the German school of historicisms. Spencer and the French philosopher Auguste Comte brought attention to the importance of sociology as a branch of knowledge, and both extended the principles of empiricism to the study of society.

The American school of pragmatism, founded by the philosophers Charles Sanders Peirce, William James, and John Dewey at the turn of this century, carried empiricism by maintaining that knowledge is an instrument of action and that all beliefs should be judged by their usefulness as rules for predicting experiences.

In the early 20th century, epistemological problems were discussed thoroughly, and subtle shades of difference grew into rival schools of thought. Special attention was given to the relation between the act of perceiving something, the object directly perceived, and the thing that can be said to be known because of the perception. The phenomenalists contended that the objects of knowledge are the same as the objects perceived. The neorealist argued that one has direct perceptions of physical objects or parts of physical objects, than of one's own mental states. The critical realists took a middle position, holding that although one perceives only sensory data such as colours and sounds, these stand for physical objects and provide knowledge of it.

A method for dealing with the problem of clarifying the relation between the act of knowing and the object known was developed by the German philosopher Edmund Husserl. He outlined an elaborate procedure that he called phenomenology, by which one is said to be able to distinguish the way things are from the way one thinks they really are, thus gaining a more precise understanding of the conceptual foundations of knowledge.

During the second quarter of the 20th century, two schools of thought emerged, each indebted to the Austrian philosopher Ludwig Wittgenstein. The first of these schools, logical empiricism, or logical positivism, had its origins in Vienna, Austria, but it soon spread to England and the United States. The logical empiricists insisted that there be only one kind of knowledge: Scientific knowledge; In that, any legitimate claim that is reinforced through the knowledge claim must be verifiable in experience. So that, much that had passed for philosophy was neither true nor false but literally meaningless. Finally, following Hume and Kant, a clear distinction must be maintained between analytic and synthetic statements. The so-called verifiability criterion of meaning has undergone changes because of discussions among the logical empiricists themselves, and their critics, but has not been discarded. More recently, the sharp distinction between the analytic and the synthetic has been attacked by many of philosophers, chiefly by American philosopher W.V.O. Quine, whose overall approach is in the pragmatic tradition.

The latter of these recent schools of thought, generally called linguistic analysis, or ordinary language philosophy, seem to break with traditional epistemology. The linguistic analysts undertake to examine the actualized directive in key epistemological terms are used-terms such as knowledge, perception, and probability - and to formulate definitive rules for their use to avoid verbal confusion.

John Austin (1911-1960), a British philosopher, a prominent figure in 20th-century analytic and linguistic philosophy, was born in Lancaster, England, he was educated at the University of Oxford. After serving in British intelligence during World War II (1939-1945), he returned to Oxford and taught philosophy until his death.

Austin viewed the fundamental philosophical task to be that of annualizing and clarifying ordinary language. He considered attention to distinctions drawn in ordinary language as the most fruitful starting point for philosophical inquiry. Austin's linguistic work led to many influential concepts, such as the speech-act theory. This arose from his observation that many utterances do not merely describe reality but also affect reality; They are the performance of some act than a report of its performance. Austin came to believe that all languages are performatives and is made up of speech acts. Seven of his essays were published during his lifetime. Posthumously published works include Philosophical Papers (1961), Sense and Sensibilia (1962), and How to Do Things with Words (1962).

Thomas Hill Green (1836-1882), British philosopher and educator, who led the revolt against empiricism, the dominant philosophy in Britain during the latter part of the 19th century. He was born in Birkin, Yorkshire, England, and educated at Rugby and the University of Oxford. He taught at Oxford from 1860 until his death, initially as a fellow and after 1878 as Whyte Professor of Moral Philosophy.

A disciple of the German philosopher Georg Wilhelm Friedrich Hegel, Green insisted that consciousness provide the necessary basis for both knowledge and morality. He argued that a person's highest good is realization and that the individual can obtainably achieve realization, only in society. Society has an obligation, in turn, to provide for the good of all its members. The political implications of his philosophy laid the basis for sweeping social-reform legislation in Britain. Besides being the most influential British philosopher of his time, Green was a vigorous champion of popular education, temperance, and political liberalism. His writings include Prolegomena to Ethics (1883) and Lectures on the Principles of Political Obligation (1895), as both liberalized materials were posthumously published.

The outcome of this crisis in economic and social thinking was the development of positive liberalism. As noted, certain modern liberals, like the Austrian-born economist Friedrich August von Hayek, consider the positive attitude an essential betrayal of liberal ideals. Others, such as the British philosophers Thomas Hill Green and Bernard Bosanquet, known as the "Oxford Idealists," ‘devised a so-called organic liberalism designed to hinder hindrances to the good life’. Green and Bosanquet advocated positive state action to promote - fulfilment, that is, to prevent economic monopoly, abolish poverty, and secure people against the disabilities of sickness, unemployment, and old age. The identified liberalism came alongside with the extension of democracy.

Most of the philosophical discussions of consciousness arose from the mind-body issues posed by René Descartes in the 17th century. Descartes asked: Is the mind, or consciousness, independent of matter? Is consciousness extended (physical) or unexceeded (nonphysical)? Is consciousness determinative, or is it determined? English philosophers such as John Locke equated consciousness with physical sensations and the information they provide, whereas European philosophers such as Gottfried Wilhelm Leibniz and Immanuel Kant gave a more central and active role to the awakening of consciousness.

The philosopher who most directly influenced subsequent exploration of the subject of consciousness was the 19th-century German educator Johann Friedrich Herbart, who wrote that ideas had quality and intensity and that they may inhibit or simplify every other. Thus, ideas may pass from "states of reality" (consciousness) to "states of tendency" (unconsciousness), with the dividing line between the two states being described as the threshold of consciousness. This formulation of Herbart clearly presages the development, by the German psychologist and physiologist Gustav Theodor Fechner, of the psycho-physical measurement of sensation thresholds, and the later development by Sigmund Freud of the concept of the unconscious.

No simple, agreed-upon definition of consciousness exists. Attempted definitions tend to be tautological (for example, consciousness defined as awareness) or merely descriptive (for example, consciousness described as sensations, thoughts, or feelings). Despite this problem of definition, the subject of consciousness has had a remarkable history. There had occasioned that the primary subject matter of psychology, consciousness as an area of study has suffered almost a total dissolution, later reemerging to become a topic of current interest.

The experimental analysis of consciousness dates from 1879, when the German psychologist Wilhelm Max Wundt started his research laboratory. For Wundt, the task of psychology was the study of the structure of consciousness, which extended well beyond sensations and included feelings, images, memory, attention, duration, and movement. Because early interest focussed on the content and dynamics of consciousness, it is not surprising that the central methodology of such studies was introspection; That is, subjects reported on the mental contents of their own consciousness. This introspective approach was developed most fully by the American psychologist Edward Bradford Titchener at Cornell University. Setting his task as that of describing the structure of the mind, Titchener attempted to detail, from introspective-reports, the dimensions of the elements of consciousness. For example, taste was "dimensionalized" into four basic categories, sweet, sour, salt, and bitter. This approach was known as structuralism.

By the 1920s, however, a remarkable revolution had occurred in psychology that was essentially to remove considerations of consciousness from psychological research for some fifty years: Behaviourism captured the field of psychology. The main initiator of this movement was the American psychologist John Broadus Watson. When in a 1913 article, Watson stated, ‘I believe that we can write on the preliminaries of psychology and never use the term’s consciousness, mental states, mind . . . imagery and the like.’ Psychologists then turned almost exclusively to behaviours, as described as to stimulus and response, and consciousness was totally bypassed as a subject. A survey of eight leading introductory psychology texts published between 1930 and the 1950s found no mention of the topic of consciousness in five texts, and in two it was treated as a historical curiosity.

Impelled of the 1950s, were, however, an interest in the subject of consciousness returned, specifically in those subjects and techniques relating to altered states of consciousness, such in sleep and dreams, meditation, biofeedback, hypnosis, and drug-induced states. An increase in sleep and dream research was directly fuelled by a discovery used for the nature of consciousness. A physiological indicator of the dream state was found: At roughly 90-minute intervals, the eyes of sleepers were observed to move rapidly, and while the sleepers' brain waves would show a pattern resembling the waking state. When people were awakened during these periods of rapid eye movement, they usually reported dreams, whereas if awakened at other times they did not. This and other research clearly suggested that sleep, once considered a passive state, were instead an active state of consciousness.

During the 1960s, an increased search for "higher levels" of consciousness through meditation resulted in a growing interest in the practices of Zen Buddhism and Yoga from Eastern cultures. A full flowering of this movement in the United States was seen in the development of training programs, such as Transcendental Meditation, that was, - directed procedures of physical relaxation and focussed attention. Biofeedback techniques also were developed to bring body systems involving factors such as blood pressure or temperature under voluntary control by providing response from the body, so that subjects could learn to control their responses. For example, researchers found that persons could control their brain-wave patterns to some extent, particularly the so-called alpha rhythms generally associated with a relaxed, meditative state. This finding was especially used for those interested in consciousness and meditation, and several ‘alpha training’ programs emerged.

Another subject that led to increased interest in altered states of consciousness was hypnosis, which involves a transfer of conscious control from the one person to another person. Hypnotism has had a long and intricate history in medicine and folklore and has been intensively studied by psychologists. Much has become known about the hypnotic state, compared with individual suggestibility and personality traits; The subject has now been largely demythologized, and the limitations of the hypnotic state are well known. Despite the increasing use of hypnosis, however, much remains to be learned about this unusual state of focussed attention.

Many people in the 1960s experimented with the psychoactive drugs known as hallucinogens, which produce mental or mind distortions of conscious dialectic awareness. The most prominent of these drugs is lysergic acid diethylamide, or LSD; Mescaline and psilocybin, the latter two have long been associated with religious ceremonies in various cultures. LSD, because of its radical thought-modifying properties, was initially explored for its so-called mind-expanding potential and for its psychotomimetic effects (imitating psychoses). Little positive use, however, has been found for these. As the metaphysic of an orderly but simple linkage between environment and behaviour became unsatisfactory in recent decades. Interest in altered states of consciousness may be taken as a visible sign of renewed interest in the topic of consciousness. That persons are active and intervening participants in their behaviour has become increasingly clear. Environments, rewards, and punishments are not simply defined by their physical character. Memories are organized, not simply stored in the composites of memory. An entirely new area called cognitive psychology has emerged that centre on these concerns. In the study of children, increased attention is being paid to how they understand, or perceive, the world at different ages. In the field of animal behaviour, researchers increasingly emphasize the inherent characteristics resulting from the way a species has been shaped to respond adaptively to the environment. Humanistic psychologists, with a concern for-actualization and growth, have emerged after a long period of silence. Throughout the development of clinical and industrial psychology, the conscious states of persons as to their current feelings and thoughts were important. The role of consciousness, however, was often de-emphasised in favour of unconscious needs and motivations. Trends can be seen, however, toward a new emphasis on the nature of states of consciousness.

When the German psychologist Wilhelm Max Wundt started his research laboratory. For Wundt, the task of psychology was the study of the structure of consciousness, which extended well beyond sensations and included feelings, images, memory, attention, duration, and movement. Because early interest focussed on the content and dynamics of consciousness, it is not surprising that the central methodology of such studies was introspection; that is, subjects reported on the mental contents of their own consciousness. This introspective approach was developed most fully by the American psychologist Edward Bradford Titchener at Cornell University. Setting his task as that of describing the structure of the mind, Titchener attempted to detail, from introspective self-reports, the dimensions of the elements of consciousness.

Scientists have long since considered the nature of consciousness without producing a fully satisfactory definition. In the early 20th century American philosopher and psychologist William James suggested that consciousness is a mental process involving both attention to external stimuli and short-term memory. Later scientific explorations of consciousness mostly expanded upon James’s work. In this, a 1997 special issue of Scientific American, Nobel laureate Francis Crick, who helped determine the structure of DNA, and fellow biophysicists Christof Koch explain how experiments on vision might deepen our understanding of consciousness.

Thirteenth-century Italian philosopher and theologian Saint Thomas Aquinas attempted to synthesize Christian belief with a broad range of human knowledge, embracing diverse sources such as Greek philosopher Aristotle and Islamic and Jewish scholars. His thought exerted lasting influence on the development of Christian theology and Western philosophy. Author Anthony Kenny examines the complexities of Aquinas’s concepts of substance and accident.

In the 5th century Bc, the Greek Sophists questioned the possibility of reliable and objective knowledge. Thus, a leading Sophist, Gorgias, argued that nothing really exists, that if anything did exist it could not be known, and that if knowledge were possible, it could not be communicated. Another prominent Sophist, Protagoras, maintained that no person's opinions can be said to be correct than another's, because each is the sole judge of his or her own experience. Plato, following his illustrious teacher Socrates, tried to answer the Sophists by postulating the existence of a world of unchanging and invisible forms, or ideas, about having exact and accurate knowledge is possible. The thing’s one sees and touches, they maintained, are imperfect copies of the pure forms studied in mathematics and philosophy. Accordingly, only the abstract reasoning of these disciplines yields genuine knowledge, whereas reliance on sense perception produces vague and inconsistent opinions. They concluded that philosophical contemplation of the unseen world of forms is the highest goal of human life.

Aristotle followed Plato in regarding abstract knowledge as superior to any other, but disagreed with him as to the proper method of achieving it. Aristotle maintained that most knowledge is derived from experience. Knowledge is gained either directly, by abstracting the defining traits of a species, or indirectly, by deducing new facts from those already known, according to the rules of logic. Careful observation and strict adherence to the rules of logic, which were first set down in systematic form by Aristotle, would help guard against the pitfalls the Sophists had exposed. The Stoic and Epicurean schools agreed with Aristotle that knowledge originates in sense perception, but against both Aristotle and Plato they maintained that philosophy is to be valued as a practical guide to life, than as an end in it.

After many centuries of declining interest in rational and scientific knowledge, the Scholastic philosopher Saint Thomas Aquinas and other philosophers of the Middle Ages helped to restore confidence in reason and experience, blending rational methods with faith into a unified system of beliefs. Aquinas followed Aristotle in regarding perception as the starting point and logic as the intellectual procedure for arriving at reliable knowledge of nature, but he considered faith in scriptural authority as the main source of religious belief.

From the 17th to the late 19th century, the main issue in epistemology was reasoning versus sense perception in acquiring knowledge. For the rationalists, of whom the French philosopher René Descartes, the Dutch philosopher Baruch Spinoza, and the German philosopher Gottfried Wilhelm Leibniz were the leaders, the main source and final test of knowledge was deductive reasoning based on evident principles, or axioms. For the empiricists, beginning with the English philosophers Francis Bacon and John Locke, the main source and final test of knowledge was sense perception.

French thinker René Descartes applied rigorous scientific methods of deduction to his exploration of philosophical questions. Descartes is probably best known for his pioneering work in philosophical skepticism. Author Tom Sorell examines the concepts behind Descartes’s work Meditationes de Prima Philosophia (1641, Meditations on First Philosophy), focussing on its distinctive use of logic and the reactions it aroused.

Bacon inaugurated the new era of modern science by criticizing the medieval reliance on tradition and authority and by setting down new rules of scientific method, including the first set of rules of inductive logic ever formulated. Locke attacked the rationalist belief that the principles of knowledge are intuitively evident, arguing that all knowledge is derived from experience, either from experience of the external world, which stamps sensations on the mind, or from internal experience, in which the mind reflects on its own activities. Human knowledge of external physical objects, he claimed, is always subject to the errors of the senses, and he concluded that one cannot have absolutely certain knowledge of the physical world.

George Berkeley conceded with Locke who retained in the possibility of knowing that some of our ideas (those of primary qualities) give us an adequate representation of the world around us, and that the various sources of knowledge, and above all the limits and doubtful capacities of our minds. It is through this that Locke connected his epistemology with the defence of religious toleration. Nevertheless, Berkeley denied Locke's belief that a distinction can be made between ideas and objects. The British philosopher David Hume continued the empiricist tradition, but he did not accept Berkeley's conclusion that knowledge was of ideas only. He divided all knowledge into two kinds: Knowledge of relations of ideas - that is, the knowledge found in mathematics and logic, which is exact and certain but provide no information about the world; and knowledge of matters of fact - that is, the knowledge derived from sense perception. Hume argued that most knowledge of matters of fact depends upon cause and effect, and since no logical connection exists between any given cause and its effect, one cannot hope to know any future matter of fact with certainty. Thus, the most reliable laws of science might not remain true, that of a conclusion that had a revolutionary impact on philosophy.

During the 19th century, the German philosopher Georg Wilhelm Friedrich Hegel revived the rationalist claim that absolutely certain knowledge of reality can be obtained by equating the processes of thought, of nature, and of history. Hegel inspired an interest in history and a historical approach to knowledge emphasized by Herbert Spencer in Britain and by the German school of historicisms. Spencer and the French philosopher Auguste Comte brought attention to the importance of sociology as a branch of knowledge, and both extended the principles of empiricism to the study of society.

In the early 20th century, epistemological problems were discussed thoroughly, and subtle shades of difference grew into rival schools of thought. Special attention was given to the relation between the act of perceiving something, the object directly perceived, and the thing that can be said to be known because of the perception. The phenomenalists contended that the objects of knowledge are the same as the objects perceived. The neorealist argued that one has direct perceptions of physical objects or parts of physical objects, than of one's own mental states. The critical realists took a middle position, holding that although one perceives only sensory data such as colours and sounds, these stand for physical objects and provide knowledge of it.

During the second quarter of the 20th century, two schools of thought emerged, each indebted to the Austrian philosopher Ludwig Wittgenstein. The first of these schools, logical empiricism, or logical positivism, had its origins in Vienna, Austria, but it soon spread to England and the United States. The logical empiricists insisted that there be only one kind of knowledge - scientific knowledge, that any valid knowledge claim must be verifiable in experience: Consequently, that much that had passed for philosophy was neither true nor false but literally meaningless. Finally, following Hume and Kant, a clear distinction must be maintained between analytic and synthetic statements.

Of these recent schools of thought, generally called linguistic analysis, or ordinary language philosophy, seems to break with traditional epistemology. The linguistic analysts undertake to examine the actualization laced upon the way major epistemological terms are used-terms such as knowledge, perception, and probability - and to formulate definitive rules for their use to avoid verbal confusion. British philosopher John Langshaw Austin argued, for example, that to say a statement was truly added but nothing to the statement except a promise by the speaker or writer. Austin does not consider truth a quality or property attaching to statements or utterances.

Positivism, is a contained system of philosophy based on experience and empirical knowledge of natural phenomena, in which metaphysics and theology are regarded as inadequate and imperfect systems of knowledge.

The doctrine was first called positivism by the 19th-century French mathematician and philosopher Auguste Comte, but some positivist concepts may be traced to the British philosopher David Hume, the French philosopher Duc de Saint-Simon, and Immanuel Kant.

The keystone of Kant's philosophy, sometimes called critical philosophy, is contained in his Critique of Pure Reason (1781), in which he examined the bases of human knowledge and created an individual epistemology. Like earlier philosophers, Kant differentiated modes of thinking into analytic and synthetic propositions. An analytic proposition is one in which the predicate is contained in the subject, as in the statement "Black houses are houses." The truth of this type of proposition is evident, because to state the reverse would be to make the proposition self-contradictory. Such propositions are called analytic because truth is discovered by the analysis of the concept itself. Synthetic propositions, on the other hand, are those that cannot be arrived at by pure analysis, as in the statement "The house is black." All the common propositions that result from experience of the world are synthetic.

Propositions, according to Kant, can also be divided into two other types, empirical and deductive. Empirical propositions depend entirely on sense perception, but a deductive proposition has for itself - , a fundamental validity and is not based on such perception. The difference between these two types of propositions may be illustrated by the empirical "The house is black" and the deductivity "Two plus two makes four." Kant's thesis in the Critique is that making synthetic speculative judgment is possible. This philosophical position is usually known as transcendentalism. In describing how this type of judgment is possible Kant regarded the objects of the material world as fundamentally unknowable, from the point of view of reason, they serve merely as the raw material from which sensations are formed. Objects of themselves have no existence, and space and time exists only as part of the mind, as "intuitions" by which perceptions are measured and judged.

Besides these intuitions, Kant stated that several deductive concepts, which he called categories, also exists. He divided the categories into four groups concerning quantity, which are unity, plurality, and totality. Those concerning quality values, for which reality, negation, and limitation, are the concerning relations under which are substance-and-accident, cause-and-effect, and reciprocity, all of these under consideration contend with the concerns of modality, in that they are possibly to explicate upon existence, and necessity. The intuitions and the categories can be applied to make judgments about experiences and perceptions, but cannot, according to Kant, be applied to abstract ideas such as freedom and existence without leading to inconsistencies in the form of coupling incomparable propositions, or "antinomies," in which both members of each pair can be proven true.

In the Metaphysics of Ethics (1797) Kant described his ethical system, which is based on a belief that the reason is the final authority for morality. Actions of any sort, he believed, must be undertaken from a sense of duty dictated by reason, and no action had rendered for expediency or solely in obedience to law or custom can be regarded as moral. Kant described two types of commands given by reason, the hypothetical imperative, which dictates a given course of action to reach a specific end, and the categorical imperative, which dictates a course of action that must be followed because of its rightness and necessity. The categorical imperative is the basis of morality and was stated by Kant in these words: "Act as if the maxim of your action were to become a vessel through which means were a way of your will and general common law."

Kant's ethical ideas are a logical outcome of his belief in the fundamental freedom of the individual as stated in his Critique of Practical Reason (1788). This freedom he did not regard as the lawless freedom of anarchy, but as the freedom of a self-government, the freedom to obey consciously the laws of the universe as revealed by reason. He believed that the welfare of each individual should properly be regarded as an end, that the world was progressing toward an ideal society in which reason would "bind every law giver to make his laws so that they could have sprung from the united will of an entire people, and to regard every subject, in as far as he wishes to be a citizen, based on whether he has conformed to that will." In his treatise Perpetual Peace (1795) Kant advocated the establishment of a world federation of republican states.

Kant had a greater influence than any other philosopher of modern times. Kantian philosophy, particularly as developed by the German philosopher Georg Wilhelm Friedrich Hegel, was the basis on which the structure of Marxism was built; Hegel's dialectical method, which was used by Karl Marx, was an outgrowth of the method of reasoning by "antinomies" that Kant used. The German philosopher Johann Fichte, Kant's pupil, rejected his teacher's division of the world into objective and subjective parts and developed an idealistic philosophy that also had great influence on 19th-century socialists. One of Kant's successors at the University of Königsberg, J.F. Herbart, incorporated some of Kant's ideas in his system of pedagogy.

Besides works on philosophy, Kant wrote many treatises on various scientific subjects, many in the field of physical geography. His most important scientific work was General Natural History and Theory of the Heavens (1755), in which he advanced the hypothesis of the formation of the universe from a spinning nebula hypothesis that later was developed independently by Pierre de LaPlace.

Among Kant's other writings are Prolegomena to Any Future Metaphysics (1783), Metaphysical Rudiments of Natural Philosophy (1786), Critique of Judgment (1790), and Religion Within the Boundaries of Pure Reason (1793).

Metaphysics, is the branch of philosophy that is concerned with the nature of ultimate reality. Metaphysic is customarily divided into ontology, which deals with the question of how many fundamentally distinct sorts of entities compose the universe, and metaphysics proper, which is concerned with describing the most general traits of reality. These general traits together define reality and would presumably characterize any universe whatever. Because these traits are not peculiar to this universe, but are common to all possible universes, metaphysics may be conducted at the highest level of abstraction. Ontology, by contrast, because it investigates the ultimate divisions within this universe, is more closely related to the physical world of human experience.

The term metaphysic is believed to have been derived in Rome about 70Bc, with the Greek Peripatetic philosopher Andronicus of Rhodes (flourished 1st century Bc) in his edition of the works of Aristotle. In the arrangement of Aristotle's works by Andronicus, the treatise originally called First Philosophy, or Theology, followed the treatise Physics. Hence, the First Philosophy became known as meta (ta) physica, or "following (the) Physics," later shortened to Metaphysics. The word took on the connotation, in popular usage, of matters transcending material reality. In the philosophic sense, however, particularly as opposed to the use of the word by occultists, metaphysic apply to all reality and is distinguished from other forms of inquiry by its generality.

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