Plato, Letters 350d

ᾐδέσθη δέ. οὔτʼ οὖν ἡλικίαν ἔχω συμπολεμεῖν ἔτι σχεδὸν οὐδενί, κοινός τε ὑμῖν εἰμι, ἄν ποτέ τι πρὸς ἀλλήλους δεηθέντες φιλίας ἀγαθόν τι ποιεῖν βουληθῆτε· κακὰ δὲ ἕως ἂν ἐπιθυμῆτε, ἄλλους παρακαλεῖτε. ταῦτα εἶπον μεμισηκὼς τὴν περὶ Σικελίαν πλάνην καὶ ἀτυχίαν· ἀπειθοῦντες δὲ καὶ οὐ πειθόμενοι ταῖς ὑπʼ ἐμοῦ διαλλάξεσιν πάντων τῶν νῦν γεγονότων κακῶν αὐτοὶ αἴτιοι ἐγένοντο αὑτοῖς, ὧν, εἰ Διονύσιος

and showed compunction. Thus, not only am I no longer, as I may say, of an age to assist anyone in war, but I also have ties in common with you both, in case you should ever come to crave at all for mutual friendship and wish to do one another good; but so long as you desire to do evil, summon others. This I said because I loathed my Sicilian wandering and its ill-success. They, however, by their disobedience and their refusal to heed my attempts at conciliation have themselves to blame for all the evils which have now happened; for, in all human probability, none of these would ever have occurred if Dionysius