“… Darwinian anthropologists, in scanning the world’s peoples, focus less on surface differences among cultures than on deep unities. Beneath the global crazy quilt of rituals and customs, they see recurring patterns in the structure of family, friendship, politics, courtship, morality. They believe the evolutionary design of human beings explains these pattens: why people in all cultures worry about social status (often more than they realize); why people in all cultures not only gossip, but gossip about the same kind of things; why in all cultures men and women seem different in a few basic ways; why people everywhere feel guilt, and feel it in broadly predictable circumstances; why people everywhere have a deep sense of justice, so that the axioms ‘One good turn deserves another’ and ‘An eye for an eye, a tooth for a tooth’ shape human life everywhere on this planet.”
The Moral Animal, Why we are the way we are: The New Science of Evolutionary Psychology P. 7