Plato, Laws 854c

συνουσίας, καὶ τὰ μὲν ἄκουε, τὰ δὲ πειρῶ λέγειν αὐτός, ὡς δεῖ τὰ καλὰ καὶ τὰ δίκαια πάντα ἄνδρα τιμᾶν· τὰς δὲ τῶν κακῶν συνουσίας φεῦγε ἀμεταστρεπτί. καὶ ἐὰν μέν σοι δρῶντι ταῦτα λωφᾷ τι τὸ νόσημα· εἰ δὲ μή, καλλίω θάνατον σκεψάμενος ἀπαλλάττου τοῦ βίου.ταῦτα ἡμῶν ᾀδόντων προοίμια τοῖς πάντα ταῦτα ἐπινοοῦσιν ὅσα ἀνόσια ἔργα καὶ πολιτοφθόρα, τῷ μὲν πειθομένῳ τὸν νόμον ἐᾶν σιγῇ δεῖ, τῷ δὲ ἀπειθοῦντι μετὰ τὸ προοίμιον

partly by self-instruction, that every man is bound to honor what is noble and just; but the company of evil men shun wholly, and turn not back. And if it be so that by thus acting your disease grows less, well; but if not, then deem death the more noble way, and quit yourself of life. As we chant this prelude to those who purpose all these unholy deeds, destructive of civic life, the law itself we must leave unvoiced for him who obeys; but for him who disobeys we must suffer the law, following on the prelude, to utter aloud this chant: