We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light. - Plato

Knowledge which is acquired under compulsion has no hold on the mind. Therefore do not use compulsion, but let early education be a sort of amusement; you will then be better able to discover the child's natural bent.

Original Greek, from Laches 196b: ἐμοὶ μὲν οὖν φαίνεται Νικίας οὐκ ἐθέλειν γενναίως ὁμολογεῖν ὅτι οὐδὲν λέγει, ἀλλὰ στρέφεται ἄνω καὶ κάτω ἐπικρυπτόμενος τὴν αὑτοῦ ἀπορίαν: καίτοι κἂν ἡμεῖς οἷοί τε ἦμεν ἄρτι ἐγώ τε καὶ σὺ τοιαῦτα στρέφεσθαι, εἰ ἐβουλόμεθα μὴ δοκεῖν ἐναντία ἡμῖν αὐτοῖς λέγειν. εἰ μὲν οὖν ἐν δικαστηρίῳ ἡμῖν οἱ λόγοι ἦσαν, εἶχεν ἄν τινα λόγον ταῦτα ποιεῖν: νῦν δὲ τί ἄν τις ἐν συνουσίᾳ τοιᾷδε μάτην κενοῖς λόγοις αὐτὸς αὑτὸν κοσμοῖ;

Any man may easily do harm, but not every man can do good to another.