57.] The principle by which the Reflective faculty of Judgment regulates and arranges the products of animated nature is described as the End or final cause,—the notion in action, the universal at once determining and determinate in itself. At the same time Kant is careful to discard the conception of external or finite adaptation, in which the End is only an adventitious form for the means and material in which it is realised. In the living organism, on the contrary, the final cause is a moulding principle and an energy immanent in the matter, and every member is in its turn a means as well as an end.
58.] Such an Idea evidently radically transforms the relation which the understanding institutes between means and ends, between subjectivity and objectivity. And yet in the face of this unification, the End or design is subsequently explained to be a cause which exists and acts subjectively, i.e. as our idea only: and teleology is accordingly explained to be only a principle of criticism, purely personal to our understanding.
After the Critical philosophy had settled that Reason can know phenomena only, there would still have been an option for animated nature between two equally subjective modes of thought. Even according to Kant's own exposition, there would have been an obligation to admit, in the case of natural productions, a knowledge not confined to the categories of quality, cause and effect, composition, constituents, and so on. The principle of inward adaptation or design, had it been kept to and carried out in scientific application, would have led to a different and a higher method of observing nature.
59.] If we adopt this principle, the Idea, when all limitations were removed from it, would appear as follows. The universality moulded by Reason, and described as the absolute and final end or the Good, would be realised in the world, and realised moreover by means of a third thing, the power which proposes this End as well as realises it,—that is, God. Thus in Him, who is the absolute truth, those oppositions of universal and individual, subjective and objective, are solved and explained to be neither self-subsistent nor true.
60.] But Good,—which is thus put forward as the final cause of the world,—has been already described as only our good, the moral law of our Practical Reason. This being so, the unity in question goes no further than make the state of the world and the course of its events harmonise with our moral standards.[1] Besides, even with this limitation, the final cause, or Good, is a vague abstraction, and the same vagueness attaches to what is to be Duty. But, further, this harmony is met by the revival and re-assertion of the antithesis, which it by its own principle had nullified. The harmony is then described as merely subjective, something which merely ought to be, and which at the same time is not real,—a mere article of faith, possessing a subjective certainty, but without truth, or that objectivity which is proper to the Idea. This contradiction may seem to be disguised by adjourning the realisation of the Idea to a future, to a time when the Idea will also be. But a sensuous condition like time is the reverse of a reconciliation of the discrepancy; and an infinite progression—which is the corresponding image adopted by the understanding—on the very face of it only repeats and re-enacts the contradiction.
A general remark may still be offered on the result to which the Critical philosophy led as to the nature of knowledge; a result which has grown one of the current 'idols' or axiomatic beliefs of the day. In every dualistic system, and especially in that of Kant, the fundamental defect makes itself visible in the inconsistency of unifying at one moment, what a moment before had been explained to be independent and therefore incapable of unification. And then, at the very moment after unification has been alleged to be the truth, we suddenly come upon the doctrine that the two elements, which, in their true status of unification, had been refused all independent subsistence, are only true and actual in their state of separation. Philosophising of this kind wants the little penetration needed to discover, that this shuffling only evidences how unsatisfactory each one of the two terms is. And it fails simply because it is incapable of bringing two thoughts together. (And in point of form there are never more than two.) It argues an utter want of consistency to say, on the one hand, that the understanding only knows phenomena, and, on the other, assert the absolute character of this knowledge, by such statements as 'Cognition can go no further'; 'Here is the natural and absolute limit of human knowledge.' But 'natural' is the wrong word here. The things of nature are limited and are natural things only to such extent as they are not aware of their universal limit, or to such extent as their mode or quality is a limit from our point of view, and not from their own. No one knows, or even feels, that anything is a limit or defect, until he is at the same time above and beyond it. Living beings, for example, possess the privilege of pain which is denied to the inanimate: even with living beings, a single mode or quality passes into the feeling of a negative. For living beings as such possess within them a universal vitality, which overpasses and includes the single mode; and thus, as they maintain themselves in the negative of themselves, they feel the contradiction to exist within them. But the contradiction is within them, only in so far as one and the same subject includes both the universality of their sense of life, and the individual mode which is in negation with it. This illustration will show how a limit or imperfection in knowledge comes to be termed a limit or imperfection, only when it is compared with the actually-present Idea of the universal, of a total and perfect. A very little consideration might show, that to call a thing finite or limited proves by implication the very presence of the infinite and unlimited, and that our knowledge of a limit can only be when the unlimited is on this side in consciousness.
The result however of Kant's view of cognition suggests a second remark. The philosophy of Kant could have no influence on the method of the sciences. It leaves the categories and method of ordinary knowledge quite unmolested. Occasionally, it may be, in the first sections of a scientific work of that period, we find propositions borrowed from the Kantian philosophy: but the course of the treatise renders it apparent that these propositions were superfluous decoration, and that the few first pages might have been omitted without producing the least change in the empirical contents.[2]
We may next institute a comparison of Kant with the metaphysics of the empirical school. Natural plain Empiricism, though it unquestionably insists most upon sensuous perception, still allows a super-sensible world or spiritual reality, whatever may be its structure and constitution, and whether derived from intellect, or from imagination, &c. So far as form goes, the facts of this super-sensible world rest on the authority of mind, in the same way as the other facts, embraced in empirical knowledge, rest on the authority of external perception. But when Empiricism becomes reflective and logically consistent, it turns its arms against this dualism in the ultimate and highest species of fact; it denies the independence of the thinking principle and of a spiritual world which developes itself in thought. Materialism or Naturalism, therefore, is the consistent and thorough-going system of Empiricism. In direct opposition to such an Empiricism, Kant asserts the principle of thought and freedom, and attaches himself to the first-mentioned form of empirical doctrine, the general principles of which he never departed from. There is a dualism in his philosophy also. On one side stands the world of sensation, and of the understanding which reflects upon it. This world, it is true, he alleges to be a world of appearances. But that is only a title or formal description; for the source, the facts, and the modes of observation continue quite the same as in Empiricism. On the other side and independent stands a self-apprehending thought, the principle of freedom, which Kant has in common with ordinary and bygone metaphysic, but emptied of all that it held, and without his being able to infuse into it anything new. For, in the Critical doctrine, thought, or, as it is there called, Reason, is divested of every specific form, and thus bereft of all authority. The main effect of the Kantian philosophy has been to revive the consciousness of Reason, or the absolute inwardness of thought. Its abstractness indeed prevented that inwardness from developing into anything, or from originating any special forms, whether cognitive principles or moral laws; but nevertheless it absolutely refused to accept or indulge anything possessing the character of an externality. Henceforth the principle of the independence of Reason, or of its absolute self-subsistence, is made a general principle of philosophy, as well as a foregone conclusion of the time.
(1) The Critical philosophy has one great negative merit. It has brought home the conviction that the categories of understanding are finite in their range, and that any cognitive process confined within their pale falls short of the truth. But Kant had only a sight of half the truth. He explained the finite nature of the categories to mean that they were subjective only, valid only for our thought, from which the thing-in-itself was divided by an impassable gulf. In fact, however, it is not because they are subjective, that the categories are finite: they are finite by their very nature, and it is on their own selves that it is requisite to exhibit their finitude. Kant however holds that what we think is false, because it is we who think it. A further deficiency in the system is that it gives only an historical description of thought, and a mere enumeration of the factors of consciousness. The enumeration is in the main correct: but not a word touches upon the necessity of what is thus empirically colligated. The observations, made on the various stages of consciousness, culminate in the summary statement, that the content of all we are acquainted with is only an appearance. And as it is true at least that all finite thinking is concerned with appearances, so far the conclusion is justified. This stage of 'appearance' however—the phenomenal world—is not the terminus of thought: there is another and a higher region. But that region was to the Kantian philosophy an inaccessible 'other world.'
(2) After all it was only formally, that the Kantian system established the principle that thought is spontaneous and self-determining. Into details of the manner and the extent of this self-determination of thought, Kant never went. It was Fichte who first noticed the omission; and who, after he had called attention to the want of a deduction for the categories, endeavoured really to supply something of the kind. With Fichte, the 'Ego' is the starting-point in the philosophical development: and the outcome of its action is supposed to be visible in the categories. But in Fichte the 'Ego' is not really presented as a free, spontaneous energy; it is supposed to receive its first excitation by a shock or impulse from without. Against this shock the 'Ego' will, it is assumed, react, and only through this reaction does it first become conscious of itself. Meanwhile, the nature of the impulse remains a stranger beyond our pale: and the 'Ego,' with something else always confronting it, is weighted with a condition. Fichte, in consequence, never advanced beyond Kant's conclusion, that the finite only is knowable, while the infinite transcends the range of thought. What Kant calls the thing-by-itself, Fichte calls the impulse from without—that abstraction of something else than 'I,' not otherwise describable or definable than as the negative or non-Ego in general. The 'I' is thus looked at as standing in essential relation with the not-I, through which its act of self-determination is first awakened. And in this manner the 'I' is but the continuous act of self-liberation from this impulse, never gaining a real freedom, because with the surcease of the impulse the 'I,' whose being is its action, would also cease to be. Nor is the content produced by the action of the 'I' at all different from the ordinary content of experience, except by the supplementary remark, that this content is mere appearance.