Ethics is a wide field which has contradicting argumentation. This book tries to open the foundations of ethics by the means of philosophical reasoning. It bridges the gap between the argumentation of ethics and the discussions in the philosophy of science.

A systematic analysis considers the objectivity of ethics, the relationship between the moral point of view and a scientific or naturalist worldview and its role in a person's rational lifespan.

Are there such things as moral truths? How do we know what we should do? And does it matter? Constructivism states that moral truths are neither invented nor discovered, but rather are constructed by rational agents in order to solve practical problems. While constructivism has become the focus of many philosophical debates in normative ethics, meta-ethics and action theory, its importance is still to be fully appreciated. These new essays written by leading scholars define and assess this new approach in ethics, addressing such questions as the nature of constructivism, how constructivism improves our understanding of moral obligations, how it accounts for the development of normative practices, whether moral truths change over time, and many other topics. The volume will be valuable for advanced students and scholars of ethics and all who are interested in questions about the foundation of morality.

Christine M. Korsgaard is one of today's leading moral philosophers: this volume collects ten influential papers by her on practical reason and moral psychology. Korsgaard draws on the work of important figures in the history of philosophy such as Plato, Aristotle, Kant, and Hume, showing how their ideas can inform the solution of contemporary and traditional philosophical problems, such as the foundations of morality and practical reason, the nature of agency, and the role of the emotions in action. In Part 1, The Principles of Practical Reason, Korsgaard defends the view that the principles of practical reason are constitutive principles of action. By governing our actions in accordance with Kant's categorical imperative and the principle of instrumental reason, she argues, we take control of our own movements and so render ourselves active, self-determining beings. She criticizes rival attempts to give a normative foundation to the principles of practical reason, challenges the claims of the principle of maximizing one's own interests to be a rational principle, and argues for some deep continuities between Plato's account of the connection between justice and agency and Kant's account of the connection between autonomy and agency. In Part II, Moral Virtue and Moral Psychology, Korsgaard takes up the question of the role of our more passive or receptive faculties--our emotions and responses --in constituting our agency. She sketches a reading of the Nicomachean Ethics, based on the idea that our emotions can serve as perceptions of good and evil, and argues that this view of the emotions is at the root of the apparent differences between Aristotle and Kant's accounts of morality. She argues that in fact, Aristotle and Kant share a distinctive view about the locus of moral value and the nature of human choice that, among other things, gives them account of what it means to act rationally that is superior to other accounts. In Part III, Other Reflections, Korsgaard takes up question how we come to view one another as moral agents in Hume's philosophy. She examines the possible clash between the agency of the state and that of the individual that led to Kant's paradoxical views about revolution. And finally, she discusses her methodology in an account of what it means to be a constructivist moral philosopher. The essays are united by an introduction in which Korsgaard explains their connections to each other and to her current work.

Were the perpetrators of the 9/11 attacks courageous &"freedom fighters&" or despicable terrorist murderers? These opposing characterizations reveal in extreme form the incompatibility between different moral visions that underlie many conflicts in the world today, conflicts that challenge us to consider how moral disputes may be resolved. Eschewing the resort to universal moral principles favored by traditional Anglo-American analytic philosophy, Joseph Margolis sets out to sketch an alternative approach that accepts the lack of any neutral ground or privileged normative perspective for deciding moral disputes.This &"second-best&" morality nevertheless aspires to achieve an &"objectively&" valid resolution through a dialectical procedure of reasoning toward a modus vivendi, an accommodation of prudential interests that are rooted in the customs and practices of the societies in conflict. In working out this approach, Margolis engages with a wide range of thinkers, from Plato, Aristotle, Kant, and Hegel through Nietzsche, Heidegger, Levinas, Rawls, Habermas, MacIntyre, Rorty, and Nussbaum, and his argument is enlivened by reference to many specific moral issues, such as abortion, the control of Kashmir, and the continuing struggle between the Muslim world and the West.

In this volume Paul Formosa sets out a novel approach to Kantian ethics as an ethics of dignity by focusing on the Formula of Humanity as a normative principle distinct from the Formula of Universal Law. By situating the Kantian conception of dignity within the wider literature on dignity, he develops an important distinction between status dignity, which all rational agents have, and achievement dignity, which all rational agents should aspire to. He then explores constructivist and realist views on the foundation of the dignity of rational agents, before developing a compelling account of who does and does not have status dignity and of what kind of achievement dignity or virtue we, as vulnerable rational agents, can and should strive for. His study will be highly valuable for those interested in Kant's ethical, moral and political philosophies.