Note 25 — Chapter III · CATEGORIÆ.
Reading edition
The difference of opinion as to the proper mode of describing the Differentia — whether by the concrete word πεζὸν, or by the abstract πεζότης — gives occasion to an objection against Aristotle’s view, and to a reply from Dexippus not very conclusive (Dexippus, book ii. s. 22, pp. 60, 61, ed. Spengel).