οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
[Seite 132] ες, = μεναίχμης, ἄνδρες, Aeschyl. ep. 1 (VII, 255).
μενέγχης: -ες, = μεναίχμης, Αἰσχύλ. ἐν Ἀνθ. Π. 7. 255.