Plato, Laws 690d

ὁρᾷς δή, φαῖμεν ἄν, ὦ νομοθέτα, πρός τινα παίζοντες τῶν ἐπὶ νόμων θέσιν ἰόντων ῥᾳδίως, ὅσα ἐστὶ πρὸς ἄρχοντας ἀξιώματα, καὶ ὅτι πεφυκότα πρὸς ἄλληλα ἐναντίως; νῦν γὰρ δὴ στάσεων πηγήν τινα ἀνηυρήκαμεν ἡμεῖς, ἣν δεῖ σε θεραπεύειν. πρῶτον δὲ μεθʼ ἡμῶν ἀνάσκεψαι πῶς τε καὶ τί παρὰ ταῦτα ἁμαρτόντες οἱ περί τε Ἄργος καὶ Μεσσήνην βασιλῆς αὑτοὺς ἅμα καὶ τὴν τῶν Ἑλλήνων δύναμιν,

Seest thou, O legislator,—it is thus we might playfully address one of those who lightly start on the task of legislation—how many are the rights pertaining to rulers, and how they are essentially opposed to one another? Herein we have now discovered a source of factions, which thou must remedy. So do thou, in the first place, join with us in enquiring how it came to pass, and owing to what transgression of those rights, that the kings of Argos and Messene brought ruin alike on themselves and on the Hellenic power,