Enneads VI.1: Of the Ten Aristotelian and Four Stoic Categories
Statement of Aristotle’s Position
Let us first examine the doctrine that classifies essence into ten (kinds). We shall have to investigate whether it be necessary to acknowledge that its partisans recognize ten kinds, all of which bear the name of essence, or ten categories; for they say that essence is not synonymous in everything, and they are right.
Let us begin by asking these philosophers whether the ten kinds apply equally to sense-(essences), and intelligible (essences), or whether they all apply to the sense-(essences), and some only to the intelligible (essences); for here there are no longer mutual relations. We must therefore inquire which of those ten kinds apply to intelligible essences, and see whether intelligible essences can be reduced to one single kind, that would also apply to sense-essences; and whether the word “being” can be applied simultaneously to intelligible and sense-entities, as a “homonymous” label. For if “being” be a homonym, there are several different kinds. If, however, it be a synonym (or, name of common qualities) it would be absurd that this word should bear the same meaning in the essences which possess the highest degree of existence, and in those which possess its lower degree; for the things among which it is possible to distinguish both primary and lower degrees could not belong to a common kind. But these (Aristotelian) philosophers do not, in their division, regard the (Platonic) intelligible entities. They therefore did not mean to classify all beings; they passed by those that possess the highest degree of existence.
1Being.
2Let us further examine if these ten divisions be kinds, and how being could form a kind; for we are forced to begin our study here.