οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
inf. pf.2 épq. de *εἴδω.
see εἴδω (II.).
ἴδμεναι: эп. = ἴδμεν II.
