Plato, Letters 357c

οὐκ εὖ φρονεῖ. λέγω δὲ τὰς δύο τήν τε Ἱππαρίνου τοῦ Διονυσίου ὑέος καὶ τὴν τοῦ ἐμοῦ ὑέος· τούτοιν γὰρ συνομολογησάντοιν τοῖς γε ἄλλοις Συρακουσίοις οἶμαι πᾶσιν ὅσοιπερ τῆς πόλεως κήδονται συνδοκεῖν. ἀλλὰ θεοῖς τε πᾶσιν τιμὰς μετʼ εὐχῶν δόντες, τοῖς τε ἄλλοις ὅσοις μετὰ θεῶν πρέπει, πείθοντες καὶ προκαλούμενοι φίλους καὶ διαφόρους μαλακῶς τε καὶ πάντως μὴ ἀποστῆτε, πρὶν ἂν τὰ

I mean the soul of Hipparinus the son of Dionysius and that of my own son; for should these agree together, I believe that all the rest of the Syracusans who have a care for their city will consent. Well then, when you have paid due honor, with prayer, to all the gods and all the other powers to whom, along with the gods, it is due, cease not from urging and exhorting both friends and opponents by gentle means and every means, until, like a heaven-sent dream presented to waking eyes,