Plato, Laws 832c

πολλάκις εἴρηκα ἐν τοῖς πρόσθεν λόγοις, δημοκρατίαν καὶ ὀλιγαρχίαν καὶ τυραννίδα. τούτων γὰρ δὴ πολιτεία μὲν οὐδεμία, στασιωτεῖαι δὲ πᾶσαι λέγοιντʼ ἂν ὀρθότατα· ἑκόντων γὰρ ἑκοῦσα οὐδεμία, ἀλλʼ ἀκόντων ἑκοῦσα ἄρχει σὺν ἀεί τινι βίᾳ, φοβούμενος δὲ ἄρχων ἀρχόμενον οὔτε καλὸν οὔτε πλούσιον οὔτε ἰσχυρὸν οὔτʼ ἀνδρεῖον οὔτε τὸ παράπαν πολεμικὸν ἑκὼν ἐάσει γίγνεσθαί ποτε. ταῦτʼ οὖν ἐστι τὰ δύο πάντων μὲν σμικροῦ διαφερόντως αἴτια, τούτων δʼ οὖν ὄντως διαφέρει. τὸ δὲ τῆς νῦν πολιτείας, ἣν νομοθετούμενοι

oligarchy, and tyranny. For none of these is a polity, but the truest name for them all would be faction-State; for none of them is a form of voluntary rule over willing subjects, but a voluntary rule over unwilling subjects accompanied always by some kind of force; and the ruler, through fear of the subject, will never voluntarily allow him to become noble or wealthy or strong or brave or in any way warlike. These, then, are the two main causes of nearly everything, and certainly of the conditions we described.