75. If you say that each of the substances contains the representations of the three things, we shall have three judgments, and there will not be one thinking being, but three. Besides, either of the three substances A, B, C, is composed of others, or it is not. If it is not, is simple, and we have a simple and perceptive substance, why then suppose three when one is enough? If it is composed of others, the difficulty is increased; for supposing A to be formed of two substances, which we may call _m_, _n_; the representation of metal which was in A will be distributed between _m_ and _n_, in which case, far from obtaining a judgment, we should not even have a subject; for it would not be possible to form the representation of metal, supposing it to be divided between _m_ and _n_. If it is not possible to form a judgment, or even the idea of one term, it is evident that all reasoning and thought would be impossible; for reasoning implies a connection of judgments from which it deduces the conclusion contained in the premises. 76. Acts of the will are also impossible in a composite substance; there is no will where there is no cognition, and this latter is, as we have just seen, inseparable from simplicity. But we may extend the demonstration still further. An act of the will implies an inclination, tendency, or whatever it may be called, towards an object known. Let us suppose the two substances A and B to compose a substance which has a will; and let us suppose all that is necessary for the act of willing to be divided between them in such manner that the knowledge of the object willed is in it, and the inclination or tendency in B; I say such an act or will is absurd. To feel the force of this truth let us suppose that the act of the will is to be formed of the cognition of one man, and the inclination of another towards the object known by the first; the pure cognition of one is not the act of the will, and the inclination of the other towards an object is impossible unless he has the cognition of the object towards which he is inclined, because this is equivalent to supposing a relation without any term to which it relates. These contradictions must be admitted by every one who denies the simplicity of the substances which will; for either the inclination and the cognition must be divided between the parts of the substances, or all concentrated in one part, and then the others are unnecessary. Moreover, the substances composing the substance which will are either simple or composite; if simple, then there are simple substances which know and will; if composite, each act of the will would be an aggregate of the action of the parts, and what would an act of the will be which should consist in an aggregate?