This book explores the idea of human nature and the many understandings of it put forward by such diverse figures as Aristotle, Rousseau, Marx, Freud, Darwin, and E.O. Wilson. Each chapter looks at a different theory and offers a concise explanation, assessing the theory's plausibility without forcing it into a mould. Some chapters deal with the ideas of only one thinker, while others (such as the chapters on liberalism and feminism) present a variety...