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§ 70.: Representation of this antinomy - Immanuel Kant, The Critique of Judgement [1892]

Edition used:

Kant’s Critique of Judgement, translated with Introduction and Notes by J.H. Bernard (2nd ed. revised) (London: Macmillan, 1914).

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§ 70.

Representation of this antinomy

So far as Reason has to do with nature, as the complex of objects of external sense, it can base itself partly upon laws which the Understanding itself prescribes a priori to nature, partly upon laws which it can extend indefinitely by means of the empirical determinations occurring in experience. To apply the former kind of laws, i.e. the universal laws of material nature in general, the Judgement needs no special principle of reflection, since it is there determinant because an objective principle is given to it through Understanding. But as regards the particular laws that can only be made known to us through experience, there can be under them such great manifoldness and diversity, that the Judgement must serve as its own principle in order to investigate and search into the phenomena of nature in accordance with a law. Such a guiding thread is needed, if we are only to hope for a connected empirical cognition according to a thoroughgoing conformity of nature to law, even its unity according to empirical laws. In this contingent unity of particular laws it may very well happen that the Judgement in its reflection proceeds from two maxims. One of these is suggested to it a priori by the mere Understanding; but the other is prompted by particular experiences, which bring the Reason into play in order to form a judgement upon corporeal nature and its laws in accordance with a particular principle. Hence it comes about that these two kinds of maxims seem to be incapable of existing together, and consequently a Dialectic arises which leads the Judgement into error in the principle of its reflection.

The first maxim of Judgement is the proposition: all production of material things and their forms must be judged to be possible according to merely mechanical laws.

The second maxim is the counter-proposition: some products of material nature cannot be judged to be possible according to merely mechanical laws. (To judge them requires quite a different law of causality, namely, that of final causes.)

If these regulative principles of investigation be converted into constitutive principles of the possibility of Objects, they will run thus:

Proposition: All production of material things is possible according to merely mechanical laws.

Counter-proposition: Some production of material things is not possible according to merely mechanical laws.

In this latter aspect, as objective principles for the determinant Judgement, they would contradict each other; and consequently one of the two propositions must necessarily be false. We shall then, it is true, have an antinomy, but not of Judgement; there will be a conflict in the legislation of Reason. Reason, however, can prove neither the one nor the other of these fundamental propositions, because we can have a priori no determinant principle of the possibility of things according to mere empirical laws of nature.

On the other hand, as regards the first-mentioned maxims of a reflective Judgement, they involve no contradiction in fact. For if I say, I must judge, according to merely mechanical laws, of the possibility of all events in material nature, and consequently of all forms regarded as its products, I do not therefore say: They are possible in this way alone (apart from any other kind of causality). All that is implied is: I must always reflect upon them according to the principle of the mere mechanism of nature, and consequently investigate this as far as I can; because unless this lies at the basis of investigation, there can be no proper knowledge of nature at all. But this does not prevent us, if occasion offers, from following out the second maxim in the case of certain natural forms (and even by occasion of these in the whole of nature), in order to reflect upon them according to the principle of final causes, which is quite a different thing from explaining them according to the mechanism of nature. Reflection in accordance with the first maxim is thus not abrogated; on the contrary, we are told to follow it as far as we can. Nor is it said that these forms would not be possible in accordance with the mechanism of nature. It is only asserted that human Reason in following up this maxim and in this way could never find the least ground for that which constitutes the specific [character] of a natural purpose, although it would increase its knowledge of natural laws. Thus it is left undecided whether or not in the unknown inner ground of nature, physico-mechanical and purposive combination may be united in the same things in one principle. We only say that our Reason is not in a position so to unite them; and that therefore the Judgement (as reflective—from subjective grounds, not as determinant, in consequence of an objective principle of the possibility of things in themselves) is compelled to think a different principle from that of natural mechanism as the ground of the possibility of certain forms in nature.