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

Even the charities I give to are related to things that touch my life, like the Special Olympics. I'm not fully rational; I'm swayed by my biases and my emotions.

Every president, Democratic or Republican, simply works on the supposition that it's better to keep jobs in America than let them go to Mexico.

I'm really interested in the pleasure we get from stories and the pleasure we get from movies, and certainly the pleasure we get from virtual experiences. My complaint is against empathy as a moral guide. But as a source of pleasure, it can't be beat.

I have two teenage sons, and they're both surviving, thriving, and having a great time, and they're always on social media.

Families survive the terrible twos because toddlers aren't strong enough to kill with their hands and aren't capable of using lethal weapons.

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.