LIMITATIONS TO THE USE OF THE TERM "PARTS," IN PHYSICAL THINGS.
But we shall have to explain more clearly the sense in which the word "parts" must here be taken. To begin with, there is here no question of parts of a body, whether homogeneous or heterogeneous. We shall make but a single observation, namely, that when treating of homogeneous bodies, parts refer to mass, and not to form. For instance, take whiteness. The whiteness of one part of the milk, is not a part of the whiteness of all the milk in existence; it is the whiteness of a part, and not the part of whiteness; for, taken in general, whiteness has neither size nor quantity. Only with these restrictions can we say that there are parts in the forms suitable to corporeal things.