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.

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.

Maine de Biran's work has had an enormous influence on the development of French Philosophy – Henri Bergson called him the greatest French metaphysician since Descartes and Malebranche, Jules Lachelier referred to him as the French Kant, and Royer-Collard called him simply 'the master of us all' – and yet the philosopher and his work remain unknown to many English speaking readers. From Ravaisson and Bergson, through to the phenomenology of major figures such as Maurice Merleau-Ponty, Michel Henry, and Paul Ricoeur, Biran's influence is evident and acknowledged as a major contribution. The notion of corps propre, so important to phenomenology in the twentieth century, originates in his thought. His work also had a huge impact on the distinction between the virtual and the actual as well as the concepts of effort and puissance, enormously important to the development of Deleuze's and Foucault's work. This volume, the first English translation of Maine de Biran in nearly a century, introduces Anglophone readers to the work of this seminal thinker. The Relationship Between the Physical and the Moral in Man is an expression of Biran's mature 'spiritualism' and philosophy of the will as well as perhaps the clearest articulation of his understanding of what would later come to be called the mind-body problem. In this text Biran sets out forcefully his case for the autonomy of mental or spiritual life against the reductive explanatory power of the physicalist natural sciences. The translation is accompanied by critical essays from experts in France and the United Kingdom, situating Biran's work and its reception in its proper historical and intellectual context.

In Kant's Human Being, Robert B. Louden continues and deepens avenues of research first initiated in his highly acclaimed book, Kant's Impure Ethics. Drawing on a wide variety of both published and unpublished works spanning all periods of Kant's extensive writing career, Louden here focuses on Kant's under-appreciated empirical work on human nature, with particular attention to the connections between this body of work and his much-discussed ethical theory. Kant repeatedly claimed that the question, "What is the human being" is philosophy's most fundamental question, one that encompasses all others. Louden analyzes and evaluates Kant's own answer to his question, showing how it differs from other accounts of human nature. This collection of twelve essays is divided into three parts. In Part One (Human Virtues), Louden explores the nature and role of virtue in Kant's ethical theory, showing how the conception of human nature behind Kant's virtue theory results in a virtue ethics that is decidedly different from more familiar Aristotelian virtue ethics programs. In Part Two (Ethics and Anthropology), he uncovers the dominant moral message in Kant's anthropological investigations, drawing new connections between Kant's work on human nature and his ethics. Finally, in Part Three (Extensions of Anthropology), Louden explores specific aspects of Kant's theory of human nature developed outside of his anthropology lectures, in his works on religion, geography, education ,and aesthetics, and shows how these writings substantially amplify his account of human beings. Kant's Human Being offers a detailed and multifaceted investigation of the question that Kant held to be the most important of all, and will be of interest not only to philosophers but also to all who are concerned with the study of human nature.

Antonia Lolordo presents an original interpretation of John Locke's metaphysics of moral agency, in which to be a moral agent is simply to be free, rational, and a person. Her account bears on Locke's metaphysics and political theory, and helps us understand his wider philosophical project and his accounts of liberty, personhood, and rationality.

A Harvard scientist illuminates the biological basis for human morality in this groundbreaking book. With the diversity of moral attitudes found across cultures around the globe, it is easy to assume that moral perspectives are socially developed—a matter of nurture rather than nature. But in Moral Minds, Marc Hauser presents compelling evidence to the contrary, and offers a revolutionary new theory: that humans have evolved a universal moral instinct. Hauser argues that certain biologically innate moral principles propel us toward judgments of right and wrong independent of gender, education, and religion. Combining his cutting-edge research with the latest findings in cognitive psychology, linguistics, neuroscience, evolutionary biology, economics, and anthropology, Hauser explores the startling implications of his provocative theory vis-à-vis contemporary bioethics, religion, the law, and our everyday lives.

Contemporary liberal thinkers commonly suppose that there is something in principle unjust about the legal prohibition of putatively victimless immoralities. Against the prevailing liberal view, Robert P. George defends the proposition that `moral laws' can play a legitimate, if subsidiary, role in preserving the `moral ecology' of the cultural environment in which people make the morally significant choices by which they form their characters and influence, for good or ill, the moral lives of others. George shows that a defence of morals legislation is fully compatible with a `pluralistic perfectionist' political theory of civil liberties and public morality.

In this book, David B. Wong defends an ambitious and important new version of moral relativism. He does not espouse the type of relativism that says anything goes, but he does start with a relativist stance against alternative theories such that there need not be only one universal truth. Wong proposes that there can be a plurality of true moralities existing across different traditions and cultures, all with one core human question as to how we can all live together.

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