How do people distinguish between good and evil? Is reason hardwired in the brain? How are moral beliefs ingrained? Long the province of philosphers, morality is increasingly an avenue of scientific inquiry.
For a topic as subjective as morality, people sure have strong beliefs about what's right and wrong. Yet even though morals can vary from person to person and culture to culture, many are practically universal, as they result from basic human emotions. We may think of moralizing as an intellectual exercise, but more frequently it's an attempt to make sense of our gut instincts.