Plato, Laws 646b

ἀληθῆ μέντοι μνημονεύεις· καὶ νῦν γʼ εἴμʼ ἕτοιμος, ἐπειδήπερ σφώ γε ἐθελήσειν προθύμως ἔφατον ἀκούειν. πῶς δʼ οὐκ ἀκουσόμεθα; κἂν εἰ μηδενὸς ἄλλου χάριν, ἀλλὰ τοῦ θαυμαστοῦ τε καὶ ἀτόπου, εἰ δεῖ ἑκόντα ποτὲ ἄνθρωπον εἰς ἅπασαν φαυλότητα ἑαυτὸν ἐμβάλλειν. ψυχῆς λέγεις· ἦ γάρ; ναί. τί δέ; σώματος, ὦ ἑταῖρε, εἰς πονηρίαν, λεπτότητά τε καὶ αἶσχος καὶ ἀδυναμίαν, θαυμάζοιμεν ἂν εἴ ποτέ τις

You are right in your reminder, and I am still ready to do so, now that you and Megillus have both expressed your willingness to listen to me. Of course we shall listen, if only on account of the surprising paradox that, of his own free will, a man ought to plunge into the depths of depravity. Depravity of soul, you mean, do you not? Yes. And how about plunging into a bad state of body, such as leanness or ugliness or impotence? Should we be surprised if a man of his own free will ever