Magic consists of, and is acquired by the worship of the gods. - Plato

The attempt to separate everything from everything else is not only not in good taste but also shows that a man is utterly uncultivated and unphilosophical. The complete separation of each thing from all is the utterly final obliteration of all discourse. For our power of discourse is derived from the interweaving of the classes or ideas with one another.

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;

All learning has an emotional base.