Xenophon of Athens (c. 434-355 BC), in his Anabasis, writes:
Niceratus. My father was anxious to see me develop into a good man and as a means to this end he compelled me to memorize all of Homer; and so even now I can repeat the whole of the Iliad and the Odyssey by heart.
Xenophon, Anabasis
Why are conductors so afraid of memorization?