Aristotle's Nicomachean Ethics is devoted to the topic of human happiness. Yet, although Aristotle's conception of happiness is central to his whole philosophical project, there is much controversy surrounding it. Hope May offers a new interpretation of Aristotle's account of happiness - one which incorporates Aristotle's views about the biological development of human beings. May argues that the relationship amongst the moral virtues, the intellectual virtues, and happiness, is best understood through the lens of developmentalism. On this view, happiness emerges from the cultivation of a number of virtues that are developmentally related. May goes on to show how contemporary scholarship in psychology, ethical theory and legal philosophy signals a return to Aristotelian ethics. Specifically, May shows how a theory of motivation known as Self-Determination Theory and recent research on goal attainment have deep affinities to Aristotle's ethical theory. May argues that this recent work can ground a contemporary virtue theory that acknowledges the centrality of autonomy in a way that captures the fundamental tenets of Aristotle's ethics.

A controversial inquiry into the origins of human values.

A distinguished international team of philosophers offer responses to the work of Bernard Williams, followed by the author's reply.

While most people throughout history have believed that we are both physical and spiritual beings, the rise of science has called into question the existence of the soul. Many now argue that neurophysiology demonstrates the radical dependence, indeed, identity, between mind and brain. Advances in genetics and in mapping human DNA, some say, show there is no need for the hypothesis of body-soul dualism. Even many Christian intellectuals have come to view the soul as a false Greek concept that is outdated and unbiblical. Concurrent with the demise of dualism has been the rise of advanced medical technologies that have brought to the fore difficult issues at both edges of life. Central to questions about abortion, fetal research, reproductive techologies, cloning and euthanasia is our understanding of the nature of human personhood, the reality of life after death and the value of ethical or religious knowledge as compared to scientific knowledge. In this careful treatment, J. P. Moreland and Scott B. Rae argue that the rise of these problems alongside the demise of Christian dualism is no coincidence. They therefore employ a theological realism to meet these pressing issues, and to present a reasonable and biblical depiction of human nature as it impinges upon critical ethical concerns. This vigorous philosophical and ethical defense of human nature as body and soul, regardless of whether one agrees or disagrees, will be for all a touchstone for debate and discussion for years to come.

The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.

Recent developments in biotechnology and genetic research are raising complex ethical questions concerning the legitimate scope and limits of genetic intervention. As we begin to contemplate the possibility of intervening in the human genome to prevent diseases, we cannot help but feel that the human species might soon be able to take its biological evolution in its own hands. ‘Playing God’ is the metaphor commonly used for this self-transformation of the species, which, it seems, might soon be within our grasp. In this important new book, Jürgen Habermas – the most influential philosopher and social thinker in Germany today – takes up the question of genetic engineering and its ethical implications and subjects it to careful philosophical scrutiny. His analysis is guided by the view that genetic manipulation is bound up with the identity and self-understanding of the species. We cannot rule out the possibility that knowledge of one’s own hereditary factors may prove to be restrictive for the choice of an individual’s way of life and may undermine the symmetrical relations between free and equal human beings. In the concluding chapter – which was delivered as a lecture on receiving the Peace Prize of the German Book Trade for 2001 – Habermas broadens the discussion to examine the tension between science and religion in the modern world, a tension which exploded, with such tragic violence, on September 11th.

This book shows how Darwinian biology supports an Aristotelian view of ethics as rooted in human nature. Defending a conception of "Darwinian natural right" based on the claim that the good is the desirable, the author argues that there are at least twenty natural desires that are universal to all human societies because they are based in human biology. The satisfaction of these natural desires constitutes a universal standard for judging social practice as either fulfilling or frustrating human nature, although prudence is required in judging what is best for particular circumstances. The author studies the familial bonding of parents and children and the conjugal bonding of men and women as illustrating social behavior that conforms to Darwinian natural right. He also studies slavery and psychopathy as illustrating social behavior that contradicts Darwinian natural right. He argues as well that the natural moral sense does not require religious belief, although such belief can sometimes reinforce the dictates of nature.