A similar experiment may be tried in metaphysics as regards the *intuition* of objects. If the intuition had to conform to the constitution of objects, I would not understand how we could know anything of them *a priori*; but if the object (as object of the senses) conformed to the constitution of our faculty of intuition, I could very well conceive such a possibility. As, however, I cannot rest in these intuitions if they are to become knowledge, but have to refer them as representations, to something as their object, and must determine this object through them, I can assume either that the *concepts* through which I arrive at this determination also conform to the object, and I would again be as perplexed about how I can know anything about it *a priori*; or else that the objects, or what is the same thing, the *experience* in which alone they are known (as objects that are given to us), conform to those concepts. In the latter case, I recognize an easier solution because experience itself is a kind of knowledge that requires understanding; and this understanding has its rules which I must presuppose as existing within me even before objects are given to me, and hence *a priori*. These rules are expressed in *a priori* concepts to which all objects of experience must necessarily conform, and with which they must agree. With regard to objects, insofar as they are thought merely through reason and thought indeed as necessary, and which can never, at least not in the way in which reason thinks them, be given in experience, the attempts at thinking them (for they must admit of being thought) will subsequently furnish an excellent touchstone of what we are adopting as our new method of thought, namely, that we know of things *a priori* only that which we ourselves put into them."―from_Critique of Pure Reason_. Preface to the Second Edition. Translated, edited, and with an Introduction by Marcus Weigelt, based on the translation by Max Müller, pp. 18-19
This experiment succeeds as hoped and promises to metaphysics, in its first part, which deals with those *a priori* concepts to which the corresponding objects may be given in experience, the secure course of a science. For by thus changing our point of view, the possibility of *a priori* knowledge can well be explained, and, what is still more, the laws which *a priori* lie at the foundation of nature, as the sum total of the objects of experience, may be supplied with satisfactory proofs, neither of which was possible within the procedure hitherto adopted. But there arises from this deduction of our faculty of knowing *a priori*, as given in the first part of metaphysics, a somewhat startling result, apparently most detrimental to that purpose of metaphysics which has to be treated in its second part, namely the impossibly of using this faculty to transcend the limits of possible experience, which is precisely the most essential concern of the science of metaphysics. But here we have exactly the experiment which, by disproving the opposite, establishes the truth of the first estimate of our *a priori* rational knowledge, namely, that it is directed only at appearances and must leave the thing in itself as real for itself but unknown to us. For that which necessarily impels us to to go beyond the limits of experience and of all appearances is the *unconditioned*, which reason rightfully and necessarily demands, aside from everything conditioned, in all things in themselves, so that the series of conditions be completed. If, then, we find that, under the supposition that our empirical knowledge conforms to objects as things in themselves, the unconditioned *cannot be thought without contradiction*, while under the supposition that our representation of things as they are given to us does not conform to them as things in themselves, but, on the contrary, that these objects as appearance conform to our mode of representation, then *the contradiction vanishes*; and if we find, therefore, that the unconditioned cannot be encountered in things insofar as we are acquainted with them (insofar as they are given to us), but only in things insofar as we are not acquainted with them, that is, insofar as they are things in themselves; then it becomes apparent that what we at first assumed only for the sake of experiment is well founded. However, with speculative reason unable to make progress in the field of the supersensible, it is still open to us to investigate whether in reason's practical knowledge data may not be found which would enable us to determine that transcendent rational concept of the unconditioned, so as to allow us, in accordance with the wish of metaphysics, to get beyond the limits of all possible experience with our *a priori* knowledge, which is possible in practical matters only. Within such a procedure, speculative reason has always at least created a space for such an expansion, even if it has to leave it empty; none the less we are at liberty, indeed we are summoned, to fill it, if we are able to do so, with practical *data* of reason."―from_Critique of Pure Reason_. Preface to the Second Edition. Translated, edited, and with an Introduction by Marcus Weigelt, based on the translation by Max Müller, pp. 19-21
The purpose of this critique of pure speculative reason consists in the attempt to change the old procedure of metaphysics, and to bring about a complete revolution after the example set by geometers and investigators of nature. This critique is a treatise on the method, not a system of the science itself; but nevertheless it marks out the whole plan of this science, both with regard to its limits and with regard to its inner organization. For it is peculiar to pure speculative reason that it is able, indeed bound, to measure its own powers according to the different ways in which it chooses its objects for thought, and to enumerate exhaustively the different ways of choosing its problems, thus tracing a complete outline of a system of metaphysics. This is due to the fact that, with regard to the first point, nothing can be attributed to objects in *a priori* knowledge, except what the thinking subject takes from within itself; while, with regard to the second point, pure reason, as far as its principles of knowledge are concerned, forms a separate and independent unity, in which, as in an organized body, every member exists for the sake of all the others, and all the others exist for the sake of the one, so that no principle can be safely applied in *one* relation unless it has been carefully examined in *all* its relations to the whole use of pure reason. Hence, too, metaphysics has this singular advantage, an advantage which cannot be shared by any other rational science which has to deal with objects (for *logic* deals only with the form of thought in general), that if by means of this critique it has been set upon the secure course of a science, it can exhaustively grasp the entire field of knowledge pertaining to it, and can thus finish its work and leave it to posterity as a capital that can never be added to, because it has to deal only with principles and with the limitations of their use, as determined by these principles themselves. And this completeness becomes indeed an obligation if metaphysics is to be a fundamental science, of which we must be able to say, *nil actum reputants, si quid superesset agendum* [to think that nothing was done for as long as something remained to be done]." ―from_Critique of Pure Reason_. Preface to the Second Edition. Translated, edited, and with an Introduction by Marcus Weigelt, based on the translation by Max Müller, pp. 21-22
What is gained by the transcendence of the object is the identifiability of the object in a plurality of acts and the identifiability of what is thought by several individuals. This identifiability is not restricted to ideal objects, which are generated according to a definite operational law and are therefore producible by everyone out of the same material of intuition which is given prior to any particular sense-experience. The identifiability obtains in precisely the same way for objects of myth and folklore, of belief and artistic fantasy. Goethe’s Faust, Apollo, and Little Red Riding Hood can be identified by several individuals and are the objects of common, universally valid statements. Indeed, exact identity of the nature of the object in question and evidential knowledge of this identity can occur *only* in the case of ideal objects. Our certainty that we all think the same number 3 in the strictest identity of its nature is much more evident than that we all think the same real object, a tree, for instance. In the case of real objects we can actually prove that it is impossible for the momentary content in which the object is represented and thought to be exactly the same in a plurality of acts and for many individuals. The only other contribution made by the fact of the consciousness of transcendence, so long overlooked in recent philosophy, to the problem of reality is this: the acts in which this consciousness is present can bring the givenness of reality, of which we shall speak later, into “objective” form, and can therefore elevate that which is given in this way as real to the status of a real “object.” But with this, the contribution of the consciousness of transcendence to the problem of reality is at an end. Although N. Hartmann made the same point with respect to Paul Linke’s otherwise shrewd and pertinent comments on his doctrine of reality, still we should emphasize that the transcendence of the object does not *exclude* the reality of the object, not even of the *same* object in the strict sense of “same.” ―from_Idealism and Realism_
*There is only one God*. Whatever exists is *ipso facto* individual; to be one it needs no extra property and calling it one merely denies that it is divided. Simple things are neither divided nor divisible; composite things do not exist when their parts are divided. So existence stands or falls with individuality, and things guard their unity as they do their existence. But what is simply speaking one can yet in certain respects be many: an individual thing, essentially undivided, can have many non-essential properties; and a single whole, actually undivided, can have potentially many parts.Only when one is used to count with does it presuppose in what it counts some extra property over and above existence, namely, quantity. The one we count with contrasts with the many it counts in the way a unity of measurement contrasts with what it measures; but the individual unity common to everything that exists contrasts with plurality simply by lacking it, as undividedness does division. A plurality is however *a* plurality: though simply speaking many, inasmuch as it exists, it is, incidentally, one. A continuum is homogeneous: its parts share the form of the whole (every bit of water is water); but a plurality is heterogeneous: its parts lack the form of the whole (no part of the house is a house). The parts of a plurality are unities and non-plural, though they compose the plurality not as non-plural but as existing; just as the parts of a house compose the house as material, not as not houses. Whereas we define plurality in terms of unity (many things are divided things to each of which is ascribed unity), we define unity in terms of division. For division precedes unity in our minds even if it doesn’t really do so, since we conceive simple things by denying compositeness of them, defining a point, for example, as lacking dimension. Division arises in the mind simply by negating existence. So the first thing we conceive is the existent, then―seeing that this existent is not that existent―we conceive division, thirdly unity, and fourthly plurality.There is only one God. Firstly, God and his nature are identical: to be God is to be this individual God. In the same way, if to be a man was to be Socrates there would only be one man, just as there was only one Socrates. Moreover, God’s perfection is unlimited, so what could differentiate one God from another? Any extra perfection in one would be lacking in the other and that would make him imperfect. And finally, the world is one, and plurality can only produce unity incidentally insofar as it too is somehow one: the primary and non-incidental source of unity in the universe must himself be one. The one we count with measures only material things, not God: like all objects of mathematics, though defined without reference to matter, it can exist only in matter. But the unity of individuality common to everything that exists is a metaphysical property applying both to non-material things and to God. But what in God is a perfection has to be conceived by us, with our way of understanding things, as a lack: that is why we talk of God as lacking a body, lacking limits and lacking division.
In provisionally characterizing the object which serves as the theme of our investigation (the Being of entities, or the meaning of Being in general), it seems that we have also delineated the method to be employed. The task of ontology is to explain Being itself and to make the Being of entities stand out in full relief. And the method of ontology remains questionable in the highest degree as long as we merely consult those ontologies which have come down to us historically, or other essays of that character. Since the term "ontology" is used in this investigation in a sense which is formally broad, any attempt to clarify the method of ontology by tracing its history is automatically ruled out. When, moreover, we use the term "ontology," we are not talking about some definite philosophical discipline standing in interconnection with the others. Here one does not have to measure up to the tasks of some discipline that has been presented beforehand; on the contrary, only in terms of the objective necessities of definite questions and the kind of treatment which the 'things themselves' require, can one develop such a discipline. With the question of the meaning of Being, our investigation comes up against the fundamental question of philosophy. This is one that must be treated *phenomenologically*. Thus our treatise does not subscribe to a 'standpoint' or represent any special 'direction'; for phenomenology is nothing of either sort, nor can it become so as long as it understands itself. The expression 'phenomenology' signifies primarily a *methodological conception*. This expression does not characterize the what of the objects of philosophical research as subject-matter, but rather the *how* of that research. The more genuinely a methodological concept is worked out and the more comprehensively it determines the principles on which a science is to be conducted, all the more primordially is it rooted in the way we come to terms with the things themselves, and the farther is it removed from what we call "technical devices," though there are many such devices even in the theoretical disciplines. Thus the term 'phenomenology' expresses a maxim which can be formulated as 'To the things themselves!' It is opposed to all free-floating constructions and accidental findings; it is opposed to taking over any conceptions which only seem to have been demonstrated; it is opposed to those pseudo-questions which parade themselves as 'problems', often for generations at a time. Yet this maxim, one may rejoin, is abundantly self-evident, and it expresses, moreover, the underlying principle of any scientific knowledge whatsoever. Why should anything so self-evident be taken up explicitly in giving a title to a branch of research? In point of fact, the issue here is a kind of 'self-evidence' which we should like to bring closer to us, so far as it is important to do so in casting light upon the procedure of our treatise. We shall expound only the preliminary conception [Vorbegriff] of phenomenology. This expression has two components: "phenomenon" and "logos." Both of these go back to terms from the Greek: φαινόμενον and λόγος. Taken superficially, the term "phenomenology" is formed like "theology," "biology," "sociology"―names which may be translated as "science of God," "science of life," "science of society." This would make phenomenology the *science of phenomena*. We shall set forth the preliminary conception of phenomenology by characterizing what one has in mind in the term's two components, 'phenomenon' and 'logos', and by establishing the meaning of the name in which these are *put together*. The history of the word itself, which presumably arose in the Wolffian school, is here of no significance."―from_Being and Time_. Translated by John Macquarrie & Edward Robinson, pp. 49-51
I now turn to a *subjective* consideration that belongs here; yet I can give even less distinctness to it than to the objective consideration just discussed, for I shall be able to express it only by image and simile. Why is our consciousness brighter and more distinct the farther it reaches outwards, so that its greatest clearness lies in sense perception, which already half belongs to things outside us; and, on the other hand, becomes more obscure as we go inwards, and leads, when followed to its innermost recesses, into a darkness in which all knowledge ceases? Because, I say, consciousness presupposes *individuality*; but this belongs to the mere phenomenon, since, as the plurality of the homogeneous, it is conditioned by the forms of the phenomenon, time and space. On the other hand, our inner nature has its root in what is no longer phenomenon but thing-in-itself, to which therefore the forms of the phenomenon do not reach; and in this way, the chief conditions of individuality are wanting, and distinct consciousness ceases therewith. In this root-point of existence the difference of beings ceases, just as that of the radii of a sphere ceases at the centre. As in the sphere the surface is produced by the radii ending and breaking off, so consciousness is possible only where the true inner being runs out into the phenomenon. Through the forms of the phenomenon separate individuality becomes possible, and on this individuality rests consciousness, which is on this account confined to phenomena. Therefore everything distinct and really intelligible in our consciousness always lies only outwards on this surface on the sphere. But as soon as we withdraw entirely from this, consciousness forsakes us―in sleep, in death, and to a certain extent also in magnetic or magic activity; for all these lead through the centre. But just because distinct consciousness, as being conditioned by the surface of the sphere, is not directed towards the centre, it recognizes other individuals certainly as of the same kind, but not as identical, which, however, they are in themselves. Immortality of the individual could be compared to the flying off at a tangent of a point on the surface; but immortality, by virtue of the eternity of the true inner being of the whole phenomenon, is comparable to the return of that point on the radius to the centre, whose mere extension is the surface. The will as thing-in-itself is entire and undivided in every being, just as the centre is an integral part of every radius; whereas the peripheral end of this radius is in the most rapid revolution with the surface that represents time and its content, the other end at the centre where eternity lies, remains in profoundest peace, because the centre is the point whose rising half is no different from the sinking half. Therefore, it is said also in the *Bhagavad-Gita*: *Haud distributum animantibus, et quasi distributum tamen insidens, animantiumque sustentaculum id cognoscendum, edax et rursus genitale* (xiii, 16, trans. Schlegel) [Undivided it dwells in beings, and yet as it were divided; it is to be known as the sustainer, annihilator, and producer of beings]. Here, of course, we fall into mystical and metaphorical language, but it is the only language in which anything can be said about this wholly transcendent theme."―from_The World as Will and Representation_. Translated from the German by E. F. J. Payne. In Two Volumes, Volume II, pp. 325-326
On the other hand, the moral law, although it gives no such prospect, does provide a fact absolutely inexplicable from any data of the world of sense or from the whole compass of the theoretical use of reason, and this fact points to a pure intelligible world―indeed, it defines it positively and enable us to know something of it, namely a law.This law gives to the sensible world, as sensuous nature (as this concerns rational beings), the form of an intelligible world, i.e., the form of supersensuous nature, without interfering with the mechanism of the former. Nature, in the widest sense of the word, is the existence of things under laws. The sensuous nature of rational beings in general is their existence under empirically conditioned laws, and therefore it is, from the point of view of reason, heteronomy. The supersensuous nature of the same beings, on the other hand, is their existence according to laws which are independent of all empirical conditions and which therefore belong to the autonomy of pure reason. And since the laws, according to which the existence of things depends on cognition, are practical, supersensuous nature, so far as we can form a concept of it, is nothing else than nature under the autonomy of the pure practical reason. The law of this autonomy is the moral law, and it, therefore, is the fundamental law of supersensuous nature and of a pure world of the understanding, whose counterpart must exist in the world of sense without interfering with the laws of the latter. The former could be called the archetypal world (*natura archetypa*) which we know only by reason; the latter, on the other hand, could be called the ectypal world (*natura ectypa*), because it contains the possible effect of the idea of the former as the determining ground of the will."―from_Critique of Practical Reason_. Translated, with an Introduction by Lewis White Beck, p. 44.
Human existence can relate to beings only if it holds itself out into the nothing. Going beyond beings occurs in the essence of Dasein. But this going beyond is metaphysics itself. This implies that metaphysics belongs to the "nature of man." It is neither a division of academic philosophy nor a field of arbitrary notions. Metaphysics is the basic occurrence of Dasein. It is Dasein itself. Because the truth of metaphysics dwells in this groundless ground it stands in closest proximity to the constantly lurking possibility of deepest error. For this reason no amount of scientific rigor attains to the seriousness of metaphysics. Philosophy can never be measured by the standard of the idea of science.If the question of the nothing unfolded here has actually questioned us, then we have not simply brought metaphysics before us in an extrinsic manner. Nor have we merely been "transposed" to it. We cannot be transposed there at all, because insofar as we exist we are always there already. "For by nature, my friend, man's mind dwells in philosophy" (Plato, Phaedrus, 279a). So long as man exists, philosophizing of some sort occurs. Philosophy―what we call philosophy―is metaphysics getting under way, in which philosophy comes to itself and to its explicit tasks. Philosophy gets under way only by a peculiar insertion of our own existence into the fundamental possibilities of Dasein as a whole. For this insertion it is of decisive importance, first, that we allow space for beings as a whole; second, that we release ourselves into the nothing, which is to say, that we liberate ourselves from those idols everyone has and to which he is wont to go cringing; and finally, that we let the sweep of our suspense take its full course, so that it swings back into the basic question of metaphysics which the nothing itself compels: 'Why are there beings at all, and why not rather nothing?"―from_What is Metaphysics?_
Metaphysics thinks about beings as beings. Wherever the question is asked what beings are, beings as such are in sight. Metaphysical representation owes this sight to the light of Being. The light itself, i.e., that which such thinking experiences as light, does not come within the range of metaphysical thinking; for metaphysics always represents beings only as beings. Within this perspective, metaphysical thinking does, of course, inquire into the being which is the source and originator of this light. But the light itself is considered sufficiently illuminated as soon as we recognize that we look through it whenever we look at beings.In whatever manner beings are interpreted―whether as spirit, after the fashion of spiritualism; or as becoming and life, or idea, will, substance, subject, or *energeia*; or as the eternal recurrence of the same events―every time, beings as beings appear in the light of Being. Wherever metaphysics represents beings, Being has entered into the light. Being has arrived in a state of unconcealedness (aletheia). But whether and how Being itself involves such unconcealedness, whether and how it manifests itself in, and as, metaphysics, remains obscure. Being in its revelatory essence, i.e., in its truth, is not recalled. Nevertheless, when metaphysics gives answers to its question concerning beings as such, metaphysics speaks out of the unnoticed revealedness of Being. The truth of Being may thus be called the ground in which metaphysics, as the root of the tree of philosophy, is kept and from which it is nourished.Because metaphysics inquires about beings as beings, it remains concerned with beings and does not devote itself to Being as Being. As the root of the tree, it sends all nourishment and all strength into the trunk and its branches. The root branches out in the soil to enable the tree to grow out of the ground and thus to leave it. The tree of philosophy grows out of the soil in which metaphysics is rooted. The ground is the element in which the root of the tree lives, but the growth of the tree is never able to absorb this soil in such a way that it disappears in the tree as part of the tree. Instead, the roots, down to the subtlest tendrils, lose themselves in the soil. The ground is ground for the roots, and in the ground the roots forget themselves for the sake of the tree...Metaphysics, insofar as it always represents only beings as beings, does not recall Being itself. Philosophy does not concentrate on its ground. It always leaves its ground―leaves it by means of metaphysics. And yet, it never escapes its ground...Insofar as a thinker sets out to experience the ground of metaphysics, insofar as the attempts to recall the truth of Being itself instead of merely representing beings as beings, his thinking has in a sense left metaphysics. From the point of view of metaphysics, such thinking goes back into the ground of metaphysics."―from_The Way Back to the Ground of Metaphysics_
Spinoza formulated the profoundly important principle that *all determination is negation*. To determine a thing is to cut it off from some sphere of being and so to limit it. To define is to set boundaries. To say that a thing is green limits it by cutting it from the sphere of pink, blue, or other-coloured things. To say that it is good cuts it off from the sphere of evil. This limitation is the same as negation. To *affirm* that a thing is within certain limits is to *deny* that it is outside those limits. To say that it is green is to say that it is not pink. Affirmation involves negation. Whatever is said of a thing denies something else of it. All determination is negation.This principle is fundamental for Hegel also, but with him it takes rather the converse form that *all negation is determination*. Formal logicians will remind us that we cannot simply convert Spinoza's proposition. But it is sufficient to point out in reply that not only does affirmation involve negation; negation likewise involves affirmation. To say that a thing belongs to one class is to affirm that it belongs to some other class,—though we may not know what that class is. Positive and negative are correlatives which mutually involve each other. To posit is to negate: this is Spinoza's principle. To negate is to posit: this is Hegel's.When, therefore, we meet Hegel talking about "the portentous power of the negative," we have to consider that for him negation is the very process of creation. For the *positive* nature of an object consists in its determinations. The nature of a stone is to be white, heavy, hard, etc. And since all determinations are negations, it follows that the positive nature of a thing consists in its negations. Negation, therefore, is of the very essence of positive being. And for the world to come into being what is above all necessary is the force of negation, "the portentous power of the negative." The genus only becomes the species by means of the differentia, and the differentia is precisely that which carves out a particular class from the general class by excluding, i.e., negating, the other species. And the species again only becomes the individual in the same way, by negating other individuals. These thoughts are no causal reflections of Hegel. They underlie his entire system. We must get to understand that these three ideas, determination, limitation, and negation, all involve each other."—from_The Philosophy of Hegel_