By Jerry A. Coyne
One cold Chicago day last February, I watched a Federal Express delivery man carry an armful of boxes to his truck. In the middle of the icy street, he slipped, scattering the boxes and exposing himself to traffic. Without thinking, I ran into the street, stopped cars, hoisted the man up and helped him recover his load. Pondering this afterward, I realized that my tiny act of altruism had been completely instinctive; there was no time for calculation.
We see the instinctive nature of moral acts and judgments in many ways: in the automatic repugnance we feel when someone such as Bernie Madoff bilks the gullible and trusting, in our disapproval of the person who steals food from the office refrigerator, in our admiration for someone who risks his life to save a drowning child. And although some morality comes from reason and persuasion — we must learn, for example, to share our toys — much of it seems intuitive and inborn.
