For ages the events of human experience were explained by recourse to supernatural agents and forces. Given the rudimentary intellectual tools then available to the human race, no better explanations were possible. Over the ensuing centuries, the ideas and methods of empirical science came into being and were applied to all aspects of human experience. Conceptions of life, the world, the universe, and even of God were modified, with naturalistic interpretations challenging and supplanting supernaturalistic ones. Today the viewpoint of science is gaining ever-greater acceptance. In his eloquent new book, The Evolution of the Human Mind, Robert Carneiro traces the history of this development—from the Paleolithic to the present—vividly describing the major events that have marked this great transition in human thought.