οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
Μνήμη: ἡ (= Μνημοσύνη) Мнема, «Память» (мать Муз) Plat.