this; there must then have preceded a rationalising subtlety which only sportively introduces the concept of purpose into the nature of things, but which does not derive it from Objects or from their empirical cognition. To this latter it is of more service to make nature comprehensible according to analogy with the subjective ground of the connexion of our representations, than to cognise it from objective grounds.

Further, objective purposiveness, as a principle of the possibility of things of nature, is so far removed from necessary connexion with the concept of nature, that it is much oftener precisely that upon which one relies to prove the contingency of nature and of its form. When, e.g. we adduce the structure of a bird, the hollowness of its bones, the disposition of its wings for motion and of its