A living thing seeks above all to DISCHARGE its strength—life itself is WILL TO POWER; self-preservation is only one of the indirect and most frequent RESULTS thereof. In short, here, as everywhere else, let us beware of SUPERFLUOUS teleological principles!—one of which is the instinct of self-preservation (we owe it to Spinoza's inconsistency). It is thus, in effect, that method ordains, which must be essentially economy of principles.

14. It is perhaps just dawning on five or six minds that natural philosophy is only a world-exposition and world-arrangement (according to us, if I may say so!) and NOT a world-explanation; but in so far as it is based on belief in the senses, it is regarded as more, and for a long time to come must be regarded as more—namely, as an explanation.