Plato, Letters 354c

ἐπειδὴ κύριος ἐγένετο βασιλεὺς τῶν ἀνθρώπων, ἀλλʼ οὐκ ἄνθρωποι τύραννοι νόμων. ὃ δὴ καὶ νῦν οὑμὸς λόγος πᾶσιν παρακελεύεται, τοῖς μὲν τυραννίδος ἐφιεμένοις ἀποτρέπεσθαι καὶ φεύγειν φυγῇ ἀπλήστως πεινώντων εὐδαιμόνισμα ἀνθρώπων καὶ ἀνοήτων, εἰς βασιλέως δʼ εἶδος πειρᾶσθαι μεταβάλλειν καὶ δουλεῦσαι νόμοις βασιλικοῖς, τὰς μεγίστας τιμὰς κεκτημένους παρʼ ἑκόντων τε ἀνθρώπων καὶ τῶν νόμων·

and glorious all these generations since Law became with them supreme king over men instead of men being despots over the laws. And now also I urgently admonish you all to do the same. Those of you who are rushing after despotic power I exhort to change their course and to flee betimes from what is counted as bliss by men of insatiable cravings and empty heads, and to try to transform themselves into the semblance of a king, and to become subject to kingly laws, owing their possession of the highest honors to the voluntary goodwill of the citizens and to the laws. And