οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
rĕtemptō, etc., v. retento, etc.
retempto, āre, s. 2. re-tento.