οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
adj.
P. κακήγορος. Ar. and P. διάβολος. V. λοίδορος (Eur., Cycl.), κακόστομος.