The evolutionary psychologist and the documentary filmmaker discuss game theory, Stanley Milgram, and whether science can make us better people.

Neurobiologists, philosophers, psychologists, and legal scholars are probing the nature of human morality using a variety of experimental techniques and moral challenges

In the beginning, American Apparel put a "sweatshop free" label on its t-shirts. But sex turned out to be a better sell than good labor practices. Lessons in the limits of altruism.

Steven Pinker talks about his personal philosophy and what reason means to him.