Gold, silver, jewels, purple garments, houses built of marble, groomed estates, pious paintings, caparisoned steeds, and other things of this kind offer a mutable and superficial pleasure; books give delight to the very marrow of one's bones. They speak to us, consult with us, and join with us in a living and intense intimacy.
PetrarchAnd men go about to wonder at the heights of the mountains, and the mighty waves of the sea, and the wide sweep of rivers, and the circuit of the ocean, and the revolution of the stars, but themselves they consider not.
Petrarch