Plato, Laws 635c

φευξεῖται διὰ τέλους, ὁπόταν εἰς ἀναγκαίους ἔλθῃ πόνους καὶ φόβους καὶ λύπας, φευξεῖσθαι τοὺς ἐν ἐκείνοις γεγυμνασμένους καὶ δουλεύσειν αὐτοῖς. ταὐτὸν δὴ τοῦτʼ, οἶμαι, καὶ πρὸς τὰς ἡδονὰς ἔδει διανοεῖσθαι τὸν αὐτὸν νομοθέτην, λέγοντα αὐτὸν πρὸς ἑαυτὸν ὡς ἡμῖν ἐκ νέων εἰ ἄπειροι τῶν μεγίστων ἡδονῶν οἱ πολῖται γενήσονται, καὶ ἀμελέτητοι γιγνόμενοι ἐν ταῖς ἡδοναῖς καρτερεῖν καὶ μηδὲν τῶν αἰσχρῶν ἀναγκάζεσθαι ποιεῖν, ἕνεκα τῆς γλυκυθυμίας τῆς πρὸς τὰς

unavoidable hardships and fears and pains, will be put to flight by the men who are trained in such things, and will become their slave. Now I presume that this same lawgiver should have held the same view about pleasures as well, and should have argued with himself that, if our citizens grow up from their youth unpracticed in the greatest pleasures, the consequence must be that, when they find themselves amongst pleasures without being trained in the duty of resisting them and of refusing to commit any disgraceful act,