οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
cernĭtus, a, um, passé au crible : Th. Prisc. 4, 1.
