things not according to any relation, not as becoming and passing away, in short, not according to one of the four forms of the principle of sufficient reason; but, on the contrary, just that which remains when all that belongs to the form of knowledge proper to that principle has been abstracted, the inner nature of the world, which always appears unchanged in all the relations, but is itself never subject to them, and has the Ideas of the world as its object or material. From such knowledge as this proceeds philosophy, like art, and also, as we shall see in this book, that disposition of mind which alone leads to true holiness and to deliverance from the world. § 54. The first three books will, it is hoped, have conveyed the distinct and certain knowledge that the world as idea is the complete mirror of the will, in which it knows itself in ascending grades of distinctness and completeness, the highest of which is man, whose nature, however, receives its complete expression only through the whole connected series of his actions. The self-conscious connection of these actions is made possible by reason, which enables a man constantly to survey the whole in the abstract. The will, which, considered purely in itself, is without knowledge, and is merely a blind incessant impulse, as we see it appear in unorganised and vegetable nature and their laws, and also in the vegetative part of our own life, receives through the addition of the world as idea, which is developed in subjection to it, the knowledge of its own willing and of what it is that it wills. And this is nothing else than the world as idea, life, precisely as it exists. Therefore we called the phenomenal world the mirror of the will, its objectivity. And since what the will wills is always life, just because life is nothing but the representation of that willing for the idea, it is all one and a mere pleonism if, instead of simply saying “the will,” we say “the will to live.”