This book proposes a unified view of the mind, which integrates the insights of philosophers, psychologists, and neuroscientists. Through a detailed discussion of major theories from all these, and related disciplines, the book reveals fundamental links between these previously unconnected approaches to human thought and experience. The book includes research from studying medicine, philosophy, mathematics, and history, and the authoor of this book is currently a practising psychiatrist and a teacher at the Harvard Medical School. The book discusses diverse fields of thought and the perspective given here should stimulate a re-evaluation of our traditional approaches to the mind.