Plato, Letters 355a

νόμος, ἄφροσιν δὲ ἡδονή. τούτων δὴ ταύτῃ πεφυκότων, ἃ συμβουλεύω Συρακοσίοις πᾶσιν φράζειν παρακελεύομαι τοῖς Δίωνος φίλοις ἐκείνου καὶ ἐμὴν κοινὴν συμβουλήν· ἐγὼ δὲ ἑρμηνεύσω ἃν ἐκεῖνος ἔμπνους ὢν καὶ δυνάμενος εἶπεν νῦν πρὸς ὑμᾶς. τίνʼ οὖν δή, τις ἂν εἴποι, λόγον ἀποφαίνεται ἡμῖν περὶ τῶν νῦν παρόντων ἡ Δίωνος συμβουλή; τόνδε. δέξασθε, ὦ Συρακόσιοι, πάντων πρῶτον νόμους οἵτινες

and men of sound sense have Law for their God, but men without sense Pleasure. Since these things are naturally ordained thus, I exhort Dion’s friends to declare what I am advising to all the Syracusans, as being the joint advice both of Dion and myself; and I will be the interpreter of what he would have said to you now, were he alive and able to speak. Pray then, someone might say, what message does the advice of Dion declare to us concerning the present situation? It is this: Above all else, 0 ye Syracusans, accept such laws