οὐ γὰρ ἂν τό γε πραχθὲν ἀγένητον θείη → since he cannot make what was done as though it had not come to pass
σιωπηλόν: τό1) молчание, безмолвие, тишь (τῆς ἐρημίας Plut.);2) молчаливость (sc. Φαβίου Μαξίμου Plut.).
