Plato, Epinomis 975d

ἀπεργαζομένην, τούτων δὲ οὐδεμίαν οὐδένα σοφὸν ποιοῦσαν, τό γε μετὰ τοῦτο παιδιά τις ἂν λείποιτο, μιμητικὴ μὲν τὸ πλεῖστον ἀλλʼ οὐδαμῇ σπουδαία. πολλοῖς μὲν γὰρ ὀργάνοις μιμοῦνται, πολλοῖς δʼ αὐτῶν τῶν σωμάτων οὐ πάντως εὐσχήμοσι μιμήμασιν, τά τε κατὰ λόγους καὶ μοῦσαν πᾶσαν, καὶ ὅσων γραφικὴ μήτηρ, πολλῶν καὶ παντοίων ποικιλμάτων ἀποτελουμένων ἐν πολλοῖς ὑγροῖς καὶ ξηροῖς γένεσιν· ὧν σοφὸν οὐδένα εἰς οὐδὲν σπουδῇ τῇ μεγίστῃ δημιουργοῦντα ἡ μιμητικὴ παρέχεται.

is achieved by means of art, but that no such art makes any man wise, there may be some diversion remaining after this—imitative for the most part, but in no way serious. For they imitate with many instruments, and with many imitative acts, not altogether seemly, of their very bodies, in performances both of speech and of every Muse, and in those whereof painting is mother, and whereby many and most various designs are elaborated in many sorts, moist and dry; and though a man ply his craft in these with the greatest zeal, in nothing is he rendered wise by imitation.