οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
-ου, ὁ 1 preceptor Sch.S.Ai.551.2 cargador βαιούλου ψόφος ἔν <θ'> en un sepulcro IPrusias 72.11 (II d.C.), cf. Hsch.s.u. οἰσύλος.