Plato, Laws 853b

τίνων ποτὲ δικαστῶν τυγχάνειν, μετʼ ἐκεῖνʼ αὐτὰ ἑξῆς ταῦτα ῥητέον. ὀρθῶς. αἰσχρὸν μὲν δή τινα τρόπον καὶ νομοθετεῖν πάντα ὁπόσα νῦν μέλλομεν τοῦτο δρᾶν, ἐν τοιαύτῃ πόλει ἥν φαμεν οἰκήσεσθαί τε εὖ καὶ τεύξεσθαι πάσης ὀρθότητος πρὸς ἐπιτήδευσιν ἀρετῆς· ἐν δὲ τῇ τοιαύτῃ τὸ καὶ ἀξιοῦν τῆς τῶν ἄλλων μοχθηρίας τῶν μεγίστων ἐμφύεσθαί τινα μεθέξοντα, ὥστε δεῖν νομοθετεῖν προκαταλαμβάνοντα καὶ ἀπειλοῦντα

and before what court it must be tried. True. It is, in a sense, a shameful thing to make all those laws that we are proposing to make in a State like ours, which is, as we say, to be well managed and furnished with all that is right for the practice of virtue. In such a State, the mere supposition that any citizen will grow up to share in the worst forms of depravity practiced in other States, so that one must forestall and denounce by law the appearance of any such character,