Photography is a demanding action sport. The light can change so quickly. I often find myself sprinting so that I can catch the perfect light falling on a photogenic subject.

With violence, as with so many other concerns, human nature is the problem, but human nature is also the solution.

The moral, then, is that familiar categories of behavior - marriage customs, food taboos, folk superstitions, and so on - certainly do vary across cultures and have to be learned, but the deeper mechanisms of mental computation that generate them may be universal and innate.

As technology accumulates and people in more parts of the planet become interdependent, the hatred between them tends to decrease, for the simple reason that you can't kill someone and trade with him too.

I think a lot of moral debates are not over what is the basis of justice, but who gets a ticket to play in the game.

Most intellectuals today have a phobia of any explanation of the mind that invokes genetics.

Gossip is certainly one of the things that language is useful for, because it's always handy to know who needs a favor, who can offer a favor, who's available, who's under the protection of a jealous spouse. And being the first to get a piece of gossip is like engaging in insider trading: You can capitalize on an opportunity before anyone else can.