In a work of outstanding clarity and sheer brilliance Steven Pinker banishes forever fears that a biological understanding of human nature threatens humane values' - Helena Cronin, author of "The Ant and the Peacock". 'A mind blowing, mind opening expose. Pinker's profoundly positive arguments for the compatibility of biology and humanism are unrivaled for their scope and depth and should be mandatory, if disquieting, reading' - Patricia Goldman-Rakic, Past President of the Society for Neuroscience.