The reciprocal adaptation and self-accommodation of phenomena that springs from this unity cannot, however, annul the inner contradiction which appears in the universal conflict of nature described above, and which is essential to the will. That harmony goes only so far as to render possible the duration of the world and the different kinds of existences in it, which without it would long since have perished. Therefore it only extends to the continuance of the species, and the general conditions of life, but not to that of the individual. If, then, by reason of that harmony and accommodation, the species in organised nature and the universal forces in unorganised nature continue to exist beside each other, and indeed support each other reciprocally, on the other hand, the inner contradiction of the will which objectifies itself in all these ideas shows itself in the ceaseless internecine war of the individuals of these species, and in the constant struggle of the manifestations of these natural forces with each other, as we pointed out above. The scene and the object of this conflict is matter, which they try to wrest from each other, and also space and time, the combination of which through the form of causality is, in fact, matter, as was explained in the First Book.42
§ 29. I here conclude the second principal division of my exposition, in the hope that, so far as is possible in the case of an entirely new thought, which cannot be quite free from traces of the individuality in which it originated, I have succeeded in conveying to the reader the complete certainty that this world in which we live and have our being is in its whole nature through and through will, and at the same time through and through idea: that 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 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