Plato, Laws 908d

ἑτέρους τοιούτους ἀπεργάζοιτο, δίκης μὴ τυγχάνων· ὁ δὲ δὴ δοξάζων μὲν καθάπερ ἅτερος, εὐφυὴς δὲ ἐπικαλούμενος, δόλου δὲ καὶ ἐνέδρας πλήρης, ἐξ ὧν μάντεις τε κατασκευάζονται πολλοὶ καὶ περὶ πᾶσαν τὴν μαγγανείαν κεκινημένοι, γίγνονται δὲ ἐξ αὐτῶν ἔστιν ὅτε καὶ τύραννοι καὶ δημηγόροι καὶ στρατηγοί, καὶ τελεταῖς δὲ ἰδίαις ἐπιβεβουλευκότες, σοφιστῶν τε ἐπικαλουμένων μηχαναί. τούτων δὴ πολλὰ

and by ridiculing other people will probably convert others to its views, unless it meets with punishment, the other class, while holding the same opinions as the former, yet being specially gifted by nature and being full of craft and guile, is the class out of which are manufactured many diviners and experts in all manner of jugglery; and from it, too, there spring sometimes tyrants and demagogues and generals, and those who plot by means of peculiar mystic rites of their own, and the devices of those who are called sophists. Of these there may be many kinds;