οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
P. ἀσαφῶς, δυσκαταμαθήτως, V. δυσκρίτως, αἰνικτηρίως, Ar. and V. ποικίλως.