“When a person depends upon their neighbor for assistance during the harvest—when strangers are few and familial ties bind the farmer to the freighter captain—the greatest danger is shunning or exile. Mollifying your peers becomes a matter of survival. You have an incentive to iron out differences, or if necessary to bury any radical beliefs that would put you at odds with your community. “In a city of millions, however, a person may build a tailor-made community inside the larger organism. Anger your neighbor and you may move in with a friend. Become an outcast among your co-workers and you
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