οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
ion. c. ἀψευδῶς.
ἀψευδέως: истинно, действительно (οἱ ἀ. ἄριστοι Her.).