We are constituted so that simple acts of kindness, such as giving to charity or expressing gratitude, have a positive effect on our long-term moods. The key to the happy life, it seems, is the good life: a life with sustained relationships, challenging work, and connections to community.

I love teaching. I wouldn't take a job that didn't include it.

I have huge admiration for people who think like the effective altruist, who try to rationally think about how they can change the world for the better, and who try not to be swayed by irrational considerations, such as skin color or whether or not someone lives in the same neighborhood.

Traditionally, psychology has been the study of two populations: university freshmen and white rats.

I draw a lot from Buddhism, which focuses on compassion and kindness, loving kindness, as they call it, but rejects empathy because it's a poor moral guide. And I think there's a lot of evidence suggesting that they're right.

The irrationality of disgust suggests it is unreliable as a source of moral insight. There may be good arguments against gay marriage, partial-birth abortions and human cloning, but the fact that some people find such acts to be disgusting should carry no weight.

Because of empathy, stories of the suffering of one person could lead us into a war that could kill millions of people.