Plato, Laws 653c

μισεῖν μὲν ἃ χρὴ μισεῖν εὐθὺς ἐξ ἀρχῆς μέχρι τέλους, στέργειν δὲ ἃ χρὴ στέργειν, τοῦτʼ αὐτὸ ἀποτεμὼν τῷ λόγῳ καὶ παιδείαν προσαγορεύων, κατά γε τὴν ἐμὴν ὀρθῶς ἂν προσαγορεύοις. καὶ γάρ, ὦ ξένε, ἡμῖν καὶ τὰ πρότερον ὀρθῶς σοι παιδείας πέρι καὶ τὰ νῦν εἰρῆσθαι δοκεῖ. καλῶς τοίνυν. τούτων γὰρ δὴ τῶν ὀρθῶς τεθραμμένων ἡδονῶν καὶ λυπῶν παιδειῶν οὐσῶν χαλᾶται τοῖς ἀνθρώποις καὶ διαφθείρεται κατὰ πολλὰ ἐν τῷ βίῳ, θεοὶ

up to the very end, and to love what ought to be loved, if you were to mark this part off in your definition and call it education, you would be giving it, in my opinion, its right name. You are quite right, Stranger, as it seems to us, both in what you said before and in what you say now about education. Very good. Now these forms of child-training, which consist in right discipline in pleasures and pains, grow slack and weakened to a great extent