This volume presents an argument which aims to fundamentally alter our view of the roots of humanity and answer questions of how a species of clever ape evolved into something different. Schizophrenia is the only illness to be found in equal measure in all racial groups, pointing to the fact that the disease must have been present at the dawn of mankind before the races diversified and spread from Africa throughout Eurasia and Australasia. The book aims to reveal how the genetic legacy of schizophrenia is at the heart of the best and worst of human achievement.