οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
(ΑΜ ὀπίσω, Α επικ. τ. ὀπίσσω)βλ. πίσω.