Plato, Laws 890c

ὅσα δὲ πρὸς ἀρετὴν τείνει καὶ κακίαν, ὡς δεῖ ταῦτα οὕτω πράττειν διανοουμένους ὅπῃπερ ἂν ὁ νομοθέτης ὑφηγήσηται γράφων—ὃς δʼ ἂν μὴ παρέχηται ἑαυτὸν τοῖς νόμοις εὐπειθῆ, τὸν μὲν δεῖν τεθνάναι, τὸν δέ τινα πληγαῖς καὶ δεσμοῖς, τὸν δὲ ἀτιμίαις, ἄλλους δὲ πενίαις κολάζεσθαι καὶ φυγαῖς· πειθὼ δὲ τοῖς ἀνθρώποις, ἅμα τιθέντα αὐτοῖς τοὺς νόμους, μηδεμίαν ἔχειν τοῖς λόγοις προσάπτοντα εἰς δύναμιν ἡμεροῦν;

as many as relate to virtue and vice, that they must regard and perform these in the way prescribed by the lawgiver in his writings; and that whosoever fails to show himself obedient to the laws must either be put to death or else be punished, in one case by stripes and imprisonment, in another by degradation, in others by poverty and exile? But as to persuasion, should the lawgiver, while enacting the people’s laws, refuse to blend any persuasion with his statements, and thus tame them so far as possible?