But the possibility of living matter cannot even be thought; its concept involves a contradiction because lifelessness, _inertia_, constitutes the essential character of matter. The possibility of matter endowed with life, and of collective nature regarded as an animal, can only be used in an inadequate way (in the interests of the hypothesis of purposiveness in the whole of nature), so far as it is manifested by experience in the organisation of nature on a small scale; but in no way can we have insight into its possibility _a priori_. There must then be a circle in the explanation, if we wish to derive the purposiveness of nature in organised beings from the life of matter, and yet only know this life in organised beings, and can form no concept of its possibility without experience of this kind. Hylozoism, therefore, does not furnish what it promises. Finally, _Theism_ can just as little establish dogmatically the possibility of natural purposes as a key to Teleology; although it certainly is superior to all other grounds of explanation in that, through the Understanding which it ascribes to the original Being, it rescues in the best way the purposiveness of nature from Idealism, and introduces a causality acting with design for its production. But we must first prove satisfactorily to the determinant Judgement the impossibility of the unity of purpose in matter resulting from its mere mechanism, before we are justified in placing the ground of this beyond nature in a determinate way. We can, however, advance no further than this. In accordance with the constitution and limits of our cognitive faculties (whilst we do not comprehend even the first inner ground of this mechanism) we must in no wise seek in matter a principle of determinate purposive references; but no other way of judging of the origination of its products as natural purposes remains to us than that by means of a supreme Understanding as cause of the world. But this is only a ground for the reflective, not for the determinant Judgement, and can justify absolutely no objective assertion. § 74. _The reason that we cannot treat the concept of a Technic of nature dogmatically is the fact that a natural purpose is inexplicable_ We deal with a concept dogmatically (even though it should be empirically conditioned) if we consider it as contained under another concept of the Object which constitutes a principle[113] of Reason, and determine it in conformity with this. But we deal with it merely critically, if we consider it only in reference to our cognitive faculties and consequently to the subjective conditions of thinking it, without undertaking to decide anything about its Object. Dogmatic procedure with a concept is then that which is conformable to law for the determinant Judgement, critical procedure for the reflective Judgement.