“A book, I was taught long ago in English class, is a living and breathing document that grows richer with each new reading.”

“Re-reading is much underrated. I've read The Spy Who Came in from the Cold once every five years since I was 15. I only started to understand it the third time.”

“I think when one's working, one works between absolute confidence and absolute doubt, and I got a huge dallop of each.”

“When we become expert in something, our tastes grow more esoteric and complex.”

“Cultures of honor tend to take root in highlands and other marginally fertile areas, such as Sicily or the mountainous Basque regions of Spain. If you live on some rocky mountainside, the explanation goes, you can't farm. You probably raise goats or sheep, and the kind of culture that grows up around being a herdsman is very different from the culture that grows up around growing crops. The survival of a farmer depends on the cooperation of others in the community. But a herdsman is off by himself. Farmers also don't have to worry that their livelihood will be stolen in the night, because crops can't easily be stolen unless, of course, a thief wants to go to the trouble of harvesting an entire field on his own. But a herdsman does have to worry. He's under constant threat of ruin through the loss of his animals. So he has to be aggressive: he has to make it clear, through his words and deeds, that he is not weak.”

“Cultural legacies are powerful forces. They have deep roots and long lives. They persist, generation after generation, virtually intact, even as the economic and social and demographic conditions that spawned them have vanished, and they play such a role in directing attitudes and behavior that we cannot make sense of our world without them.”

“Living a long life, the conventional wisdom at the time said, depended to a great extent on who we were—that is, our genes. It depended on the decisions we made—on what we chose to eat, and how much we chose to exercise, and how effectively we were treated by the medical system. No one was used to thinking about health in terms of community.”