Summary of Book 2

This idea, as such, already presupposes a form, object and subject, is therefore relative; and if we ask what remains if we take away this form, and all those forms which are subordinate to it, and which express the principle of sufficient reason, the answer must be that as something toto genere different from idea, this can be nothing but will, which is thus properly the thing-in-itself.

Every one finds that he himself is this will, in which the real nature of the world consists, and he also finds [212] that he is the knowing subject, whose idea the whole world is, the world which exists only in relation to his consciousness, as its necessary supporter. Every one is thus himself in a double aspect the whole world, the microcosm; finds both sides whole and complete in himself. And what he thus recognises as his own real being also exhausts the being of the whole world—the macrocosm; thus the world, like man, is through and through will, and through and through idea, and nothing more than this. So we see the philosophy of Thales, which concerned the macrocosm, unite at this point with that of Socrates, which dealt with the microcosm, for the object of both is found to be the same. But all the knowledge that has been communicated in the two first books will gain greater completeness, and consequently greater certainty, from the two following books, in which I hope that several questions that have more or less distinctly arisen in the course of our work will also be sufficiently answered.

In the meantime one such question may be more particularly considered, for it can only properly arise so long as one has not fully penetrated the meaning of the foregoing exposition, and may so far serve as an illustration of it. It is this: Every will is a will towards something, has an object, an end of its willing; what then is the final end, or towards what is that will striving that is exhibited to us as the being-in-itself of the world? This question rests, like so many others, upon the confusion of the thing-in-itself with the manifestation.

The principle of sufficient reason, of which the law of motivation is also a form, extends only to the latter, not to the former. It is only of phenomena, of individual things, that a ground can be given, never of the will itself, nor of the Idea in which it adequately objectifies itself. So then of every particular movement or change of any kind in nature, a cause is to be sought, that is, a condition that of necessity produced it, but never of the natural force itself which is revealed in this and innumerable similar phenomena; and it is therefore simple misunderstanding, arising from want of consideration, to ask for a cause of gravity, electricity, and so on. Only if one had somehow shown that gravity and electricity were not original special forces of nature, but only the manifestations of a more general force already known, would it be allowable to ask for the cause which made this force produce the phenomena of gravity or of electricity here. All this has been explained at length above. In the same way every particular act of will of a knowing individual (which is itself only a manifestation of will as the thing-in-itself) has necessarily a motive without which that act would never have occurred; but just as material causes contain merely the determination that at this time, in this place, and in this matter, a manifestation of this or that natural force must take place, so the motive determines only the act of will of a knowing being, at this time, in this place, and under these circumstances, as a particular act, but by no means determines that that being wills in general or wills in this manner; this is the expression of his intelligible character, which, as will itself, the thing-in-itself, is without ground, for it lies outside the province of the principle of sufficient reason. Therefore every man has permanent aims and motives by which he guides his conduct, and he can always give an account of his particular actions; but if he were asked why he wills at all, or why in general he wills to exist, he would have no answer, and the question would indeed seem to him meaningless; and this would be just the expression of his consciousness that he himself is nothing but will, whose willing stands by itself and requires more particular determination by motives only in its individual acts at each point of time.