The Moral Instinct

There is great article on NYTimes online by Steven Pinker:

The gap between people’s convictions and their justifications is also on display in the favorite new sandbox for moral psychologists, a thought experiment devised by the philosophers Philippa Foot and Judith Jarvis Thomson called the Trolley Problem. On your morning walk, you see a trolley car hurtling down the track, the conductor slumped over the controls. In the path of the trolley are five men working on the track, oblivious to the danger. You are standing at a fork in the track and can pull a lever that will divert the trolley onto a spur, saving the five men. Unfortunately, the trolley would then run over a single worker who is laboring on the spur. Is it permissible to throw the switch, killing one man to save five? Almost everyone says “yes.”

And the 5 moral spheres:

harm, fairness, community (or group loyalty), authority and purity

This about the community:

Community, the very different emotion that prompts people to share and sacrifice without an expectation of payback, may be rooted in nepotistic altruism, the empathy and solidarity we feel toward our relatives (and which evolved because any gene that pushed an organism to aid a relative would have helped copies of itself sitting inside that relative)

And this:

The ranking and placement of moral spheres also divides the cultures of liberals and conservatives in the United States. Many bones of contention, like homosexuality, atheism and one-parent families from the right, or racial imbalances, sweatshops and executive pay from the left, reflect different weightings of the spheres. In a large Web survey, Haidt found that liberals put a lopsided moral weight on harm and fairness while playing down group loyalty, authority and purity. Conservatives instead place a moderately high weight on all five. It’s not surprising that each side thinks it is driven by lofty ethical values and that the other side is base and unprincipled.

...........

When a mother stays up all night comforting a sick child, the genes that endowed her with that tenderness were “selfish” in a metaphorical sense, but by no stretch of the imagination is she being selfish.

Read the whole thing.