οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
οντος, ὁ, ἡ, toothless, Arist.PA674b20, Fr.294.