Note 54 — Chapter III · CATEGORIÆ.

Ibid. b. 15; p. 8, a. 12. The Scholion of Simplikius on this point (p. 65, a. 16, b. 18, Br.) is instructive. He gives his own opinion, and that of some preceding commentators, adverse to Aristotle. He says that ἐπιστήμη and τὸ ἐπιστητόν, αἰσθησις and τὸ αἰσθητόν, are not properly correlates. The actual correlates with the actual, the potential with the potential. Now, in the above pairs, τὸ ἐπιστητὸν and τὸ αἰσθητὸν are potentials, while ἐπιστήμη and αἴσθησις are actuals; therefore it is correct to say that τὸ ἐπιστητὸν and τὸ αἰσθητὸν will not cease to exist if you take away ἐπιστήμη and αἴσθησις. But the real and proper correlate to τὸ ἐπιστητὸν would be τὸ ἐπιστημονικόν: the proper correlate to τὸ αἰσθητὸν would be τὸ αἰσθητικὸν. And when we take these two latter pairs, it is perfectly correct to say, συναναιρεῖ ταῦτα ἄλληλα.

In the treatise, De Partibus Animalium, i. p. 641, b. 2, where Aristotle makes νοῦς correlate with τὰ νοητά, we must understand νοῦς as equivalent to τὸ νοητικόν, and as different from ἡ νόησις.