Plato, Letters 352c

ὑμῖν, καὶ δευτέροις πᾶσιν τοῖς ἐν Συρακούσαις, τρίτοις δὲ ὑμῶν καὶ τοῖς ἐχθροῖς καὶ πολεμίοις, πλὴν εἴ τις αὐτῶν ἀνοσιουργὸς γέγονεν· ταῦτα γὰρ ἀνίατα καὶ οὐκ ἄν ποτέ τις αὐτὰ ἐκνίψειν. νοήσατε δὲ ἃ λέγω νῦν.ἔσθʼ ὑμῖν κατὰ Σικελίαν πᾶσαν λελυμένης τῆς τυραννίδος πᾶσα μάχη περὶ αὐτῶν τούτων, τῶν μὲν βουλομένων ἀναλαβεῖν πάλιν τὴν ἀρχήν, τῶν δὲ τῇ τῆς τυραννίδος ἀποφυγῇ τέλος ἐπιθεῖναι. συμβουλὴ δὴ περὶ τῶν τοιούτων

to all the Syracusans, in the second place, and, in the third, to your enemies and your foes, unless any of them be a doer of impious deeds ; for such deeds are irremediable and none could ever wash out their stain. Mark, then, what I now say. Now that the tyranny is broken down over the whole of Sicily all your fighting rages round this one subject of dispute, the one party desiring to recover the headship, and the other to put the finishing touch to the expulsion of the tyrants. Now the majority of men always believe that the right advice about these matters