Plato, Letters 356c

ὃς εἴρηται μὲν καὶ πρότερον ὑμῖν, ὅμως δʼ ἔτι καὶ νῦν ἀκούετε. ἐὰν ἐθέλῃ τὸ γένος ὑμῖν τὸ Διονυσίου τε καὶ Ἱππαρίνου ἐπὶ σωτηρίᾳ Σικελίας παύσασθαι τῶν νῦν παρόντων κακῶν, τιμὰς αὑτοῖς καὶ γένει λαβόντες εἴς τε τὸν ἔπειτα καὶ τὸν νῦν χρόνον, ἐπὶ τούτοις καλεῖτε, ὥσπερ καὶ πρότερον ἐρρήθη, πρέσβεις οὓς ἂν ἐθελήσωσιν κυρίους ποιησάμενοι τῶν διαλλαγῶν—εἴτε τινὰς αὐτόθεν εἴτε ἔξωθεν εἴτε ἀμφότερα—καὶ ὁπόσους ἂν συγχωρήσωσιν· τούτους

which indeed has been described to you before, yet listen to it now again. If you find that the family of Dionysius and Hipparinus is willing to make an end of the evils now occurring in order to secure the salvation of Sicily provided that they receive honors both in the present and for the future for themselves and for their family, then on these terms, as was said before, convoke envoys empowered to negotiate a pact, such men as they may choose, whether they come from Sicily or from abroad or both, and in such numbers as may be mutually agreed.