οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
P. προορᾶν (or mid.), P. and V. προνοεῖν (or mid.; V. only mid.), μαντεύεσθαι, V. προδέρκεσθαι, προλεύσσειν.