Note 128 — BOOK I[1] THE PHILOSOPHERS

“Substance” (οὐσία) and “accident” (συμβεβηκός) are defined by Aristotle in the Metaphysica, Bk. IV, cc. 8, 9 respectively. The definitions in no way bear the interpretation that Hippolytus here puts on them. In the Categories, which, whether by Aristotle or not, are not referred to by him in any of his extant works, it is said (c. 4) that “of things in complex enunciated, each signifies either Substance or Quantity, or Quality or Relation, or Where or When, or Position, or Possession, or Action, or Passion.” It is from this that Hippolytus probably took the statement in our text. The illustrations are in part found in Metaphysica, c. 4.