A growing body of evidence from the sciences suggests that our moral beliefs have an evolutionary basis. To explain how human morality evolved, some philosophers have called for the study of morality to be naturalized, i.e., to explain it in terms of natural causes by looking at its historical and biological origins. The present literature has focused on the link between evolution and moral realism: if our moral beliefs enhance fitness, does this mean they track moral truths? In spite of the growing empirical evidence, these discussions tend to remain high-level: the mere fact that morality has evolved is often deemed enough to decide questions in normative and meta-ethics. This volume starts from the assumption that the details about the evolution of morality do make a difference, and asks how. It presents original essays by authors from various disciplines, including philosophy, anthropology, developmental psychology, and primatology, who write in conversation with neuroscience, sociology, and cognitive psychology.

This volume analyzes the biological and philosophical disagreements in evolutionary ethics and points out difficulties with the interpretations. The book is divided into four sections. The first is an historical introduction to the origin of evolutionary ethics, showing how different evolutionary ethics was a hundred years ago, and how distant Huxley is from most of us now. The second section argues for a sociobiological interpretation of evolutionary ethics. The third section presents the view opposite to that of the second section and rejects the sociobiological interpretation. The fourth section deals objectively with many complex and fundamental issues from diverse perspectives.

Moral thinking pervades our practical lives, but where did this way of thinking come from, and what purpose does it serve? Is it to be explained by environmental pressures on our ancestors a million years ago, or is it a cultural invention of more recent origin? In The Evolution of Morality, Richard Joyce takes up these controversial questions, finding that the evidence supports an innate basis to human morality. As a moral philosopher, Joyce is interested in whether any implications follow from this hypothesis. Might the fact that the human brain has been biologically prepared by natural selection to engage in moral judgment serve in some sense to vindicate this way of thinking—staving off the threat of moral skepticism, or even undergirding some version of moral realism? Or if morality has an adaptive explanation in genetic terms—if it is, as Joyce writes, "just something that helped our ancestors make more babies"—might such an explanation actually undermine morality's central role in our lives? He carefully examines both the evolutionary "vindication of morality" and the evolutionary "debunking of morality," considering the skeptical view more seriously than have others who have treated the subject. Interdisciplinary and combining the latest results from the empirical sciences with philosophical discussion, The Evolution of Morality is one of the few books in this area written from the perspective of moral philosophy. Concise and without technical jargon, the arguments are rigorous but accessible to readers from different academic backgrounds. Joyce discusses complex issues in plain language while advocating subtle and sometimes radical views. The Evolution of Morality lays the philosophical foundations for further research into the biological understanding of human morality.

This book explores historical and current discussions of the relevance of evolutionary theory to ethics. The historical section conveys the intellectual struggle that took place within the framework of Darwinism from its inception up to the work of G. C. Williams, W. D. Hamilton, R. D. Alexander, A. L. Trivers, E. O. Wilson, R. Dawkins, and others. The contemporary section discusses ethics within the framework of evolutionary theory as enriched by the works of biologists such as those mentioned above. The issue of whether ethical practice and ethical theory can be grounded in the theory of evolution has taken a new and significant direction within the context of sociobiology and is proving to be a challenge to previous thinking. This book conveys that challenge.

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This book introduces readers to the application of evolutionary ideas to moral thinking and justification, presenting contrasting perspectives on controversial issues.

Sam Harris dismantles the most common justification for religious faith--that a moral system cannot be based on science.