Plato, Laws 660c

σὺ κατʼ Αἴγυπτον ἀφερμηνεύεις, ἀλλʼ οὐδέποτε τῶν αὐτῶν. ἄριστά γʼ, ὦ Κλεινία. εἰ δʼ ἔδοξά σοι ἃ σὺ λέγεις λέγειν ὡς νῦν γιγνόμενα, οὐκ ἂν θαυμάζοιμι εἰ μὴ σαφῶς λέγων ἃ διανοοῦμαι τοῦτο ἐποίησα καὶ ἔπαθον· ἀλλʼ ἃ βούλομαι γίγνεσθαι περὶ μουσικήν, τοιαῦτʼ ἄττα εἶπον ἴσως ὥστε σοὶ δόξαι ταῦτα ἐμὲ λέγειν. λοιδορεῖν γὰρ πράγματα ἀνίατα καὶ πόρρω προβεβηκότα ἁμαρτίας οὐδαμῶς ἡδύ,

Nobly spoken, O Clinias! If, however, I seemed to you to say that the practices you refer to are in use now, very likely our mistake arose from my own failure to express my meaning clearly; probably I stated my own desires with regard to music in such a way that you imagined me to be stating present facts. To denounce things that are beyond remedy and far gone in error is a task that is by no means pleasant; but at times it is unavoidable. And now that you hold the same opinion on this subject, come, tell me, do you assert that such practices are more general among the Cretans