οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
adj.
Oared: P. and V. κωπήρης, V. εὐήρετμος, πολύκωπος. A two-oared rowing boat: P. ἀκάτιον ἀμφηρικόν (Thuc. 4, 67). subs. P. εἰρεσία, ἡ. The art of rowing: P. ἐρετική, ἡ (Plat.).