Individuals who could not form cooperative alliances, on average, died sooner and left fewer children. And so we are the descendants of the successful cooperators.

Intuitions come first, strategic reasoning second.

I think that we Americans, in particular, tend to think too directly about problems. If there's a problem we want to basically go in with a screwdriver or else drop bombs on it. A better way to solve problems is to think indirectly and try to change the environment. So I think you can gain much better self-control not so much by working on yourself as by looking at the situations you're in and the people you hang around, and changing your environment.

Our moral sense really evolved to bind groups together into teams that can cooperate in order to compete with other teams.

Happiness doesn't come from getting what you want. It doesn't come from within, either. Happiness comes from *between*--from finding the right relationship between yourself and others, between yourself and your work, and between yourself and something larger than yourself.

In real life, however, you don't react to what someone did; you react only to what you think she did, and the gap between action and perception is bridged by the art of impression management. If life itself is but what you deem it, then why not focus your efforts on persuading others to believe that you are a virtuous and trustworthy cooperator?

Empathy is an antidote to righteousness, although it's very difficult to empathize across a moral divide