Note 6 — Chapter XXVII · PARMENIDES.
Reading edition
Plato, Parmenid. p. 130 D. Οὐδαμῶς, φάναι τὸν Σωκράτην, ἀλλὰ ταῦτα μέν γε, ἅπερ ὁρῶμεν, ταῦτα καὶ εἶναι· εἶδος δέ τι αὐτῶν οἰηθῆναι εἶναι μὴ λίαν ᾖ ἄτοπον.
Alexander, who opposes the doctrine of the Platonists about Ideas, treats it as understood that they did not recognise Ideas of worms, gnats, and such like animals. Schol. ad Aristot. Metaphys. A. 991 a. p. 575, a. 30 Brandis.