The Human Conspiracy (1975)

Research on behavior begins to converge on a clearer picture of human virtues and vices. Exploring the richness of human life involves many different skills - to understand, for instance, how each person's genetic and cultural inheritance react together. A new interpretation of evolution emphasizes human capacities for altruism and co-operation. But the benign conspiracy has sinister undertones -for the loyalty and comradeship that sustain each person and his society may also lead to conflict between groups.