ALL THE OTHER PHYSICAL CATEGORIES REFER TO MATTER, FORM OR COMBINATION.
It might however be objected that the property of "being" does not consist in being a subject; for the difference (as, for instance, a biped), is also one of those things which are not in a subject.[363] If "biped" be considered as a part of being, we are compelled to recognize that "biped" is not in a subject; but if by "biped" we do not mean some particular "being" but the property of being a biped, then we are no longer speaking of a being, but of a quality, and "biped" will be in a subject.
But time and place do not seem to be in a subject! If we define time as "the measure of movement,"[364] (there are two possibilities). First, time might be measured movement; and then it will be in movement as in a subject, while movement itself will be in the moved thing. Or, time will be what measures (the soul, or the present moment), and then it will be in what measures as in a subject. As to space, as it is the limit of what contains, it will also reside in what contains.[365] It is otherwise with the "being" that we are here considering. "Being," then, will have to be considered as consisting in either one, or in several, or in all the properties of which we are speaking; because these properties simultaneously suit matter, form, and the combination.