Page:On the Fourfold Root, and On the Will in Nature.djvu/203

 same time from inside, quite directly, and therefore according to its whole mode of action. Here we stand as it were behind the scenes, and learn the secret of the process by which cause produces effect in its most inward nature; for here our knowledge comes to us through a totally different channel and in a totally different way. From this results the important proposition: The action of motives (motivation) is causality seen from within. Here accordingly causality presents itself in quite a different way, in quite a different medium, and for quite another kind of know ledge; therefore it must now be exhibited as a special and peculiar form of our principle, which consequently here presents itself as the Principle of the Sufficient Reason of Acting, principium rationis sufficients agendi, or, more briefly, as the Law of Motives (Law of Motivation).

As a clue to my philosophy in general, I here add, that this Fourth Class of Objects for the Subject, that is, the one object contained in it, the will which we apprehend within us, stands in the same relation towards the First Class as the law of motives towards the law of causality, as I have established it in § 20. This truth is the cornerstone of my whole Metaphysic.

As to the way in which, and the necessity with which, motives act, and as to the dependence of their action upon empirical, individual character, and even upon individual capacity for knowledge, &c. &c., I refer my readers to my Prize-essay on the Freedom of the Will, in which I have treated all this more fully.

It is not upon causality proper, but upon the identity of the knowing with the willing Subject, as shown in § 42, that the influence is based, which the will exercises over