Why do fools fall in love? Why does a man's annual salary, on average, increase $600 with each inch of his height? When a crack dealer guns down a rival, how is he just like Alexander Hamilton, whose face is on the ten-dollar bill? How do optical illusions function as windows on the human soul? Cheerful, cheeky, occasionally outrageous MIT psychologist Steven Pinker answers all of the above... (read more)