οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
[Seite 33] ων, dasselbe, Schol. Ap. Rh. 1, 826.