Note 103 — Chapter XXIII · PROTAGORAS.
Reading edition
Plato, Protag. p. 352 B-C. πότερον καὶ τοῦτό σοι δοκεῖ ὥσπερ τοῖς πολλοῖς ἀνθρώποις ἢ ἄλλως; … διανοούμενοι περὶ τῆς ἐπιστήμης ὥσπερ περὶ ἀνδραπόδον, περιελκομένης ὑπὸ τῶν ἄλλων ἁπάντων. Aristotle in the Nikomachean Ethics cites and criticises the opinion of Sokrates, wherein the latter affirmed the irresistible supremacy of knowledge, when really possessed, over all passions and desires. Aristotle cites it with the express phraseology and illustration contained in this passage of the Protagoras. Ἐπιστάμενον μὲν οὖν οὔ φασί τινες οἷόν τε εἶναι [ἀκρατεύεσθαι]. δεινὸν γάρ, ἐπιστήμης ἐνούσης, ὡς ᾤετο Σωκράτης, ἄλλο τι κρατεῖν, καὶ περιέλκειν αὐτὴν ὥσπερ ἀνδράποδον. Σωκράτης μὲν γὰρ ὅλως ἐμάχετο πρὸς τὸν λόγον, ὡς οὐκ οὔσης ἀκρασίας· οὐθένα γὰρ ὑπολαμβάνοντα, πράττειν παρὰ τὸ βέλτιστον, ἀλλὰ δι’ ἄγνοιαν (Ethic. N. vii. 2, vii. 3, p. 1145, b. 24). The same metaphor περιέλκεται ἐπιστήμη is again ascribed to Sokrates by Aristotle, a little farther on in the same treatise, p. 1147, b. 15.
We see from hence that when Aristotle comments upon the doctrine of Sokrates, what he here means is, the doctrine of the Platonic Sokrates in the Protagoras; the citation of this particular metaphor establishes the identity.
In another passage of the Nikom. Eth., Aristotle also cites a fact respecting the Sophist Protagoras, which fact is mentioned in the Platonic dialogue Protagoras — respecting the manner in which that Sophist allowed his pupils to assess their own fee for his teaching (Ethic. Nik. ix. 1, 1164, a. 25).