1400. In like manner, also, if man knows nothing more than that there is an earth, and knows nothing of its kingdoms, governments and societies, then he does not know what the earth is; from a knowledge of what is on the earth man learns what it is like. It is the same in other cases. For example, man is provided with a body, and if he does not know what is in that body, he then knows nothing about it; but when he looks into it and sees the marvelous things therein, he is then aware of its indefinite varieties. So likewise, if he only knows that he is able to think, he then knows nothing; but when he learns that there are indefinite things which he can never comprehend by any science, he then first begins to know [what thought is]. If he only knows that there is a certain science, and nothing more, he then knows nothing; but when he learns that science, he then begins to understand that there is nothing in which there are not indefinite things. So if he should speak of the entire world and not know what is in it, he knows nothing. 1748, Mar. 15.