"This book will show how the purpose for which general intelligence evolved--solving evolutionarily novel problems that the intelligence required for living on a savannah didn't cover--allows us to explain why intelligent people have the particular values and preferences they have. For instance: why liberals are more intelligent than conservatives, why atheists are more intelligent than the religious, why more intelligent men (but not more intelligent women) value monogamy, why night owls are more intelligent than morning larks, and why homosexuals are more intelligent than heterosexuals"--
