Chapter XXIV. On Matter

Matter has already been spoken of in the fourth chapter of the supplements to the first book, when we were considering the part of our knowledge of which we are conscious a priori. But it could only be considered there from a one-sided point of view, because we were then concerned merely with its relation to the forms of our intellect, and not to the thing in itself, and therefore we investigated it only from the subjective side, i. e., so far as it is an idea, and not from the objective side, i. e., with regard to what it may be in itself. In the first respect, our conclusion was that it is objective activity in general, yet conceived without fuller determination; therefore it takes the place of causality in the table of our a priori knowledge which is given there. For what is material is that which acts (the actual) in general, and regarded apart from the specific nature of its action. Hence also matter, merely as such, is not an object of perception, but only of thought, and thus is really an abstraction. It only comes into perception in connection with form and quality, as a body, i. e., as a fully determined kind of activity. It is only by abstracting from this fuller determination that we think of matter as such, i. e., separated from form and quality; consequently under matter we think of acting absolutely and in general, thus of activity in the abstract. The more fully determined acting we then conceive as the accident of matter; but only by means of this does matter become perceptible, i. e., present itself as a body and an object of experience. Pure matter, on the other hand, which, as I have shown in the Criticism of the Kantian Philosophy, alone constitutes the true and admissible content of the conception of substance, is causality itself, thought objectively, consequently as in space, and therefore filling it. Accordingly the whole being of matter consists in acting. Only thus does it occupy space and last in time. It is through and through pure causality. Therefore wherever there is action there is matter, and the material is the active in general. But causality itself is the form of our understanding; for it is known to us a priori, as well as time and space. Thus matter also, so far and up to this point, belongs to the formal part of our knowledge, and is consequently that form of the understanding, causality itself, bound up with space and time, hence objectified, i. e., conceived as that which fills space. (The fuller explanation of this doctrine will be found in the second edition of the essay on the principle of sufficient reason, p. 77; third edition, p. 82.) So far, however, matter is properly not the object but the condition of experience; like the pure understanding itself, whose function it so far is. Therefore of pure matter there is also only a conception, no perception. It enters into all external experience as a necessary constituent part of it; yet it cannot be given in any experience, but is only thought, and thought indeed as that which is absolutely inert, inactive, formless, and without qualities, and which is yet the supporter of all forms, qualities, and effects. Accordingly, of all fleeting phenomena, thus of all manifestations of natural forces and all living beings, matter is the permanent substratum which is necessarily produced by the forms of our intellect in which the world as idea exhibits itself. As such, and as having sprung from the forms of the intellect, it is entirely indifferent to those phenomena themselves, i. e., it is just as ready to be the supporter of this force of nature as of that, whenever, under the guidance of causality, the necessary conditions appear; while it itself, just because its existence is really only formal, i. e., is founded in the intellect must be thought as that which under all that change is absolutely permanent, thus with regard to time is without beginning and without end. This is why we cannot give up the thought that anything may be made out of anything, for example, gold out of lead; for this would only require that we should find out and bring about the intermediate states which matter, in itself indifferent, would have to pass through upon that path. For a priori we can never see why the same matter which is now the supporter of the quality lead could not some time become the supporter of the quality gold. Matter, as that which is only thought a priori, is distinguished from the a priori intuitions or perceptions proper by the fact that we can also think it entirely away; space and time, on the contrary, never. But this only shows that we can present to ourselves space and time in imagination without matter. For the matter which has once been placed in them, and accordingly thought as existing, we can never again absolutely think away, i. e., imagine it as vanished and annihilated, but are always forced to think of it merely as transferred to another space. So far, then, matter is as inseparably connected with our faculty of knowledge as space and time themselves. Yet even the difference that it must first be voluntarily thought as existing indicates that it does not belong so entirely and in every regard to the formal part of our knowledge as space and time, but also contains an element which is only given a posteriori. It is, in fact, the point of connection of the empirical part of our knowledge with the pure and a priori part, consequently the peculiar foundation-stone of the world of experience.

Only where all a priori assertions cease, therefore in the entirely empirical part of our knowledge of bodies, in their form, quality, and definite manner of acting, does that will reveal itself which we have already recognised and established as the true inner nature of things. But these forms and qualities always appear only as the properties and manifestations of that very matter the existence and nature of which depends upon the subjective forms of our intellect, i. e., they only become visible in it, and therefore by means of it. For that which always exhibits itself to us is only matter acting in some specially determined manner. Out of the inner properties of such matter, properties which cannot be further explained, proceeds every definite kind of effect of given bodies; and yet the matter itself is never perceived, but only these effects, and the definite properties which lie at their foundation, after separating which, matter, as that which then remains over, is necessarily added in thought by us; for, according to the exposition given above, it is objectified causality itself. Accordingly matter is that whereby the will, which constitutes the inner nature of things, becomes capable of being apprehended, perceptible, visible. In this sense, then, matter is simply the visibility of the will, or the bond between the world as will and the world as idea. It belongs to the latter inasmuch as it is the product of the functions of the intellect, to the former inasmuch as that which manifests itself in all material existences, i. e., phenomena is the will. Therefore every object is, as thing in itself, will, and as phenomenon, matter. If we could strip any given matter of all the properties that come to it a priori, i. e., of all the forms of our perception and apprehension, we would have left the thing in itself, that which, by means of those forms, appears as the purely empirical in matter, but which would then itself no longer appear as something extended and active; i. e., we would no longer have matter before us, but the will. This very thing in itself, or the will, in that it becomes a phenomenon, i. e., enters the forms of our intellect, appears as matter, i. e., as the invisible but necessarily assumed supporter of the properties which are only visible through it. In this sense, then, matter is the visibility of the will. Consequently Plotinus and Giordano Bruno were right, not only in their sense but also in ours, when they made the paradoxical assertion already referred to in chapter 4: Matter itself is not extended, consequently it is incorporeal. For space, which is our form of perception, imparts extension to matter, and corporeal existence consists in acting, which depends upon causality, and consequently upon the form of our understanding. On the other hand, every definite property, thus everything empirical in matter, even gravity, depends upon that which only becomes visible by means of matter, the thing in itself, the will. Gravity is yet the lowest of all grades of the objectification of the will; therefore it appears in all matter without exception, thus is inseparable from matter in general. Yet, just because it is a manifestation of the will, it belongs to knowledge a posteriori, not to knowledge a priori. Therefore we can always picture to ourselves matter without weight, but not without extension, repulsive force, and stability, for then it would be without impenetrability, and consequently would not occupy space, i. e., it would be without the power of acting; but the nature of matter as such just consists in acting, i. e., in causality in general; and causality depends upon the a priori form of our understanding, and therefore cannot be thought away.

Matter is accordingly the will itself, but no longer in itself, but so far as it is perceived, i. e., assumes the form of the objective idea. Thus what objectively is matter is subjectively will. Exactly corresponding to this, as was proved above, our body is just the visibility, objectivity of our will, and so also every body is the objectivity of the will at some one of its grades. Whenever the will exhibits itself to objective knowledge it enters into the forms of perception of the intellect, time, space, and causality. But on account of this it exists at once as a material object. We can present to our minds form without matter, but not the reverse; because matter deprived of form would be the will itself, and the will only becomes objective by entering the forms of perception of our intellect, and therefore only by means of the assumption of form. Space is the form of perception of matter because the latter is the substance (Stoff) of mere form, but matter can appear only in form.

Since the will becomes objective, i. e., passes over into the idea, matter is the universal substratum of this objectification, or rather it is this objectification itself taken abstractly, i. e., regarded apart from all form. Matter is accordingly the visibility of the will in general, while the character of its definite manifestations has its expression in form and quality. Hence what in the manifestation, i. e., for the idea, is matter is in itself will. Therefore, under the conditions of experience and perception, everything holds good of it that holds good of the will in itself, and it repeats all the relations and properties of the will in temporal images. Accordingly it is the substance of the world of perception, as the will is the inner nature of all things. The forms are innumerable, the matter is one; just as the will is one in all its objectifications. As the will never objectifies itself as general, i. e., as absolute will, but always as particular, i. e., under special determinations and a given character, so matter never appears as such, but always in connection with some particular form and quality. In the manifestation or objectification of the will matter represents its totality, it itself, which in all is one, as matter is one in all bodies. As the will is the inmost kernel of all phenomenal beings, so matter is the substance which remains after all the accidents have been taken away. As the will is that which is absolutely indestructible in all existence, so matter is that which is imperishable in time and permanent through all changes. That matter for itself, thus separated from form, cannot be perceived or presented in imagination depends upon the fact that in itself, and as the pure substantiality of bodies, it is really the will itself. But the will cannot be apprehended objectively, or perceived in itself, but only under all the conditions of the idea, and therefore only as phenomenon. Under these conditions, however, it exhibits itself at once as body, i. e., as matter clothed in form and quality. But form is conditioned by space, and quality or power of acting by causality; thus both depend upon the functions of the intellect. Matter without them would just be the thing in itself, i. e., the will itself. Therefore, as has been said, Plotinus and Giordano Bruno could only be brought by a completely objective path to the assertion that matter in and for itself is without extension, consequently without spatial properties, consequently incorporeal.

Because, then, matter is the visibility of the will, and every force in itself is will, no force can appear without a material substratum, and conversely no body can be without forces dwelling in it which constitute its quality. Therefore a body is the union of matter and form which is called substance (Stoff). Force and substance are inseparable because at bottom they are one; for, as Kant has shown, matter itself is given us only as the union of two forces, the force of expansion and that of attraction. Thus there is no opposition between force and substance, rather they are precisely one.

Led by the course of our consideration to this standpoint, and having attained to this metaphysical view of matter, we will confess without reluctance that the temporal origin of forms, shapes, or species cannot reasonably be sought elsewhere than in matter. Some time or other they must have come forth from it, just because it is the mere visibility of the will which constitutes the inner nature of all phenomena. In that the will manifests itself, i. e., presents itself objectively to the intellect, matter, as its visibility, assumes form by means of the functions of the intellect. Hence the Schoolmen said: “Materia appetit formam.” That such was the origin of all forms of life cannot be doubted: we cannot even conceive it otherwise. Whether, however, now, since the paths to the perpetuation of the forms stand open, and are secured and sustained by nature with boundless care and jealousy, generatio œquivoca still takes place, can only be decided by experience; especially since the saying, Natura nihil facit frustra, might, with reference to the paths of regular propagation, be used as a valid argument against it. Yet in spite of the most recent objections to it, I hold that at very low grades generatio œquivoca is very probable, and primarily indeed in the case of entozoa and epizoa, particularly such as appear in consequence of special cachexia of the animal organism. For the conditions of their life only appear exceptionally; consequently their species cannot propagate itself in the regular manner, and therefore has always to arise anew whenever opportunity offers. Therefore as soon as the conditions of life of epizoa have appeared in consequence of certain chronic diseases, or cachexia, and in accordance with them, pediculus capitis or pubis or corporis appears entirely of itself, and without any egg; and this notwithstanding the complex structure of these insects, for the putrefaction of a living animal body affords material for higher productions than that of hay in water, which only produces infusoria. Or is it thought more likely that the eggs of the epizoa are constantly floating about in the air in expectation? (Fearful to think of!) Let us rather remember the disease of phthiriasis, which occurs even now. An analogous case takes place when through special circumstances the conditions of life appear of a species which up till then was foreign to that place. Thus August St. Hilaire saw in Brazil, after the burning of a primitive forest, as soon as ever the ashes had cooled, a number of plants grow up out of them, the species of which was not to be found far and wide; and quite recently Admiral Petit-Thouars informed the Académie des sciences that upon the growing coral islands in Polynesia a soil gradually deposits itself which is now dry, now lies in water, and which vegetation soon takes possession of, bringing forth trees which are absolutely peculiar to these islands (Comptes rendus, 17th Jan. 1859, p. 147). Whenever putrefaction takes place mould, fungi, and in liquids infusoria appear. The assumption now in favour that spores and eggs of the innumerable species of all those kinds of animal life are everywhere floating in the air, and wait through long years for a favourable opportunity, is more paradoxical than that of generatio œquivoca. Putrefaction is the decomposition of an organised body, first into its more immediate chemical constituents. Since now these are more or less the same in all living beings, the omnipresent will to live can possess itself of them, in order, in accordance with the circumstances, to produce new existences from them; and these forming themselves according to design, i. e., objectifying the volition of the will at the time, solidify out of the chemical elements as the chicken out of the fluidity of the egg. When, however, this does not take place, the putrefying matter is resolved into its ultimate