Plato, Letters 333c

διαβάλλουσιν καὶ λέγουσιν ὡς ἐπιβουλεύων τῇ τυραννίδι δίων πράττοι πάντα ὅσα ἔπραττεν ἐν τῷ τότε χρόνῳ, ἵνα ὁ μὲν παιδείᾳ δὴ τὸν νοῦν κηληθεὶς ἀμελοῖ τῆς ἀρχῆς ἐπιτρέψας ἐκείνῳ, ὁ δὲ σφετερίσαιτο καὶ Διονύσιον ἐκβάλοι ἐκ τῆς ἀρχῆς δόλῳ. ταῦτα τότε ἐνίκησεν καὶ τὸ δεύτερον ἐν Συρακοσίοις λεγόμενα, καὶ μάλα ἀτόπῳ τε καὶ αἰσχρᾷ νίκῃ τοῖς τῆς νίκης αἰτίοις. οἷον γὰρ γέγονεν, ἀκοῦσαι χρὴ τοὺς

Dionysius listened to the slanderers who said that Dion was plotting against the tyranny in all that he was then doing, his scheme being that Dionysius, with his mind infatuated with education, should neglect his empire and entrust it to Dion, who should then seize on it for himself and expel Dionysius from his kingship by craft. And then, for the second time, these slanderous statements triumphed with the Syracusans, and that with a triumph that was most monstrous and shameful for the authors of the triumph. Those who are urging me to address myself