Plato, Letters 331c

πατέρα δὲ ἢ μητέρα οὐχ ὅσιον ἡγοῦμαι προσβιάζεσθαι μὴ νόσῳ παραφροσύνης ἐχομένους, ἐὰν δέ τινα καθεστῶτα ζῶσι βίον, ἑαυτοῖς ἀρέσκοντα, ἐμοὶ δὲ μή, μήτε ἀπεχθάνεσθαι μάτην νουθετοῦντα μήτε δὴ κολακεύοντά γε ὑπηρετεῖν αὐτοῖς, πληρώσεις ἐπιθυμιῶν ἐκπορίζοντα ἃς αὐτὸς ἀσπαζόμενος οὐκ ἂν ἐθέλοιμι ζῆν. ταὐτὸν δὴ καὶ περὶ πόλεως αὑτοῦ διανοούμενον χρὴ ζῆν τὸν ἔμφρονα· λέγειν μέν, εἰ μὴ

I deem it impious to apply compulsion, unless they are in the grip of the disease of insanity; but if they are living a settled life which is pleasing to them, though not to me, I would neither irritate them with vain exhortations nor yet minister to them with flatteries by providing them with means to satisfy appetites of a sort such that I, were I addicted to them, would refuse to live. So likewise it behoves the man of sense to hold, while he lives, the same view concerning his own State: if it appears to him to be ill governed