οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
fixus: a, um, Part. and P. a., from figo.
(1) fīxus,¹¹ a, um, p.-adj. de figo, fiché, enfoncé : Cic. Rab. Post. 25