It is extremely dangerous to have a state run by someone who governs by impulse. - Stephen Greenblatt

A comparably capacious embrace of beauty and pleasure—an embrace that somehow extends to death as well as life, to dissolution as well as creation—characterizes Montaigne’s restless reflections on matter in motion, Cervantes’s chronicle of his mad knight, Michelangelo’s depiction of flayed skin, Leonardo’s sketches of whirlpools, Caravaggio’s loving attention to the dirty soles of Christ’s feet.

Poggio Bracciolini was a book hunter, perhaps the greatest in an age obsessed with ferreting out and recovering the heritage of the ancient world. The finding of a lost book does not ordinarily figure as a thrilling event, but behind that one moment was the arrest and imprisonment of a pope, the burning of heretics, and a great culturewide explosion of interest in pagan antiquity. The act of discovery fulfilled the life’s passion of a brilliant book hunter. And that book hunter, without ever intending or realizing it, became a midwife to modernity.

On the other side of anger at those who either peddled false visions of security or incited irrational fears of death, Lucretius offered a feeling of liberation and the power to stare down what had once seemed so menacing. What human beings can and should do, he wrote, is to conquer their fears, accept the fact that they themselves and all the things they encounter are transitory, and embrace the beauty and the pleasure of the world.