On Human Nature

On Human Nature is a 1979 Pulitzer Prize-winning book by Harvard biologist E.O. Wilson. 
The book tries to explain how aspects of humans and society can be explained from the point of view of evolution. He explains how evolution has left its traces on the characteristics which are the specialty of the human species. Examples are generosity, self-sacrifice, worship and the use of sex for pleasure. 
The book was an attempt to complete the Darwinian revolution by bringing biological thought into social sciences and humanities.