Critique of Judgement by Immanuel Kant Chapter 73 Page 9

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.