οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
A v. ἁνδάνω.
εὔαδον: ἴδε ἀνδάνω.