Plato, Laws 808d

τῶν ἐν ταῖς πόλεσιν· ἡμέρας δὲ ὄρθρου τε ἐπανιόντων παῖδας μὲν πρὸς διδασκάλους που τρέπεσθαι χρεών, ἄνευ ποιμένος δὲ οὔτε πρόβατα οὔτʼ ἄλλο οὐδέν πω βιωτέον, οὐδὲ δὴ παῖδας ἄνευ τινῶν παιδαγωγῶν οὐδὲ δούλους ἄνευ δεσποτῶν. ὁ δὲ παῖς πάντων θηρίων ἐστὶ δυσμεταχειριστότατον· ὅσῳ γὰρ μάλιστα ἔχει πηγὴν τοῦ φρονεῖν μήπω κατηρτυμένην, ἐπίβουλον καὶ δριμὺ καὶ ὑβριστότατον θηρίων γίγνεται. διὸ δὴ

for just as no sheep or other witless creature ought to exist without a herdsman, so children cannot live without a tutor, nor slaves without a master. And, of all wild creatures, the child is the most intractable; for in so far as it, above all others, possesses a fount of reason that is as yet uncurbed, it is a treacherous, sly and most insolent creature. Wherefore the child must be strapped up, as it were,