David Gauthier is a Canadian-American philosopher best known for his neo-Hobbesian social contract (contractarian) theory of morality, as developed in his 1986 book Morals by Agreement.
Susan Rose Wolf is an American moral philosopher and philosopher of action who is currently the Edna J. Koury Professor of Philosophy at the University of North Carolina at Chapel Hill. She taught previously at Johns Hopkins University (1986–2002), the University of Maryland (1981–1986) and Harvard University (1978–1981).
Thomas Nagel is an American philosopher. He is the University Professor of Philosophy and Law Emeritus at New York University, where he taught from 1980 to 2016. His main areas of philosophical interest are legal philosophy, political philosophy, and ethics.
Christine Marion Korsgaard, is an American philosopher who is the Arthur Kingsley Porter Professor of Philosophy Emerita at Harvard University. Her main scholarly interests are in moral philosophy and its history; the relation of issues in moral philosophy to issues in metaphysics, the philosophy of mind, and the theory of personal identity; the theory of personal relationships; and in normativity in general.
Ronald Myles Dworkin was an American legal philosopher, jurist, and scholar of United States constitutional law. At the time of his death, he was Frank Henry Sommer Professor of Law and Philosophy at New York University and Professor of Jurisprudence at University College London. Dworkin had taught previously at Yale Law School and the University of Oxford, where he was the Professor of Jurisprudence, successor to philosopher H.L.A. Hart. An influential contributor to both philosophy of law and political philosophy, Dworkin received the 2007 Holberg International Memorial Prize in the Humanities for "his pioneering scholarly work" of "worldwide impact." According to a survey in The Journal of Legal Studies, Dworkin was the second most-cited American legal scholar of the twentieth century. After his death, the Harvard legal scholar Cass Sunstein said Dworkin was "one of the most important legal philosophers of the last 100 years. He may well head the list."
In philosophy, practical reason is the use of reason to decide how to act. It contrasts with theoretical reason, often called speculative reason, the use of reason to decide what to follow. For example, agents use practical reason to decide whether to build a telescope, but theoretical reason to decide which of two theories of light and optics is the best.
Gregory Vlastos was a preeminent scholar of ancient philosophy, and author of many works on Plato and Socrates. He transformed the analysis of classical philosophy by applying techniques of modern analytic philosophy to restate and evaluate the views of Socrates and Plato.
In ethics, value pluralism is the idea that there are several values which may be equally correct and fundamental, and yet in conflict with each other. In addition, value-pluralism postulates that in many cases, such incompatible values may be incommensurable, in the sense that there is no objective ordering of them in terms of importance. Value pluralism is opposed to value monism.
Gilbert Harman was an American philosopher, who taught at Princeton University from 1963 until his retirement in 2017. He has published widely in philosophy of language, cognitive science, philosophy of mind, ethics, moral psychology, epistemology, statistical learning theory, and metaphysics. He and George Miller co-directed the Princeton University Cognitive Science Laboratory. Harman has taught or co-taught courses in Electrical Engineering, Computer Science, Psychology, Philosophy, and Linguistics.
Germain Gabriel Grisez was a French-American philosopher. Grisez's development of ideas from Thomas Aquinas has redirected Catholic thought and changed the way it has engaged with secular moral philosophy. In 'The First Principle of Practical Reason: A Commentary on the Summa Theologiae, I-II, Q. 94, A. 2' (1965) Grisez attacked the neo-scholastic interpretation of Aquinas as holding that moral norms are derived from methodologically antecedent knowledge of human nature. Grisez defended the idea of metaphysical free choice, and proposed a natural law theory of practical reasoning and moral judgement which, although broadly Thomistic, departs from Aquinas on significant points.
Joseph Raz was an Israeli legal, moral and political philosopher. He was an advocate of legal positivism and is known for his conception of perfectionist liberalism. Raz spent most of his career as a professor of philosophy of law at the University of Oxford associated with Balliol College and was latterly a part-time professor of law at Columbia University Law School and a part-time professor at King's College London. He received the Tang Prize in Rule of Law in 2018.
Jonathan Glover is a British philosopher known for his books and studies on ethics. He currently teaches ethics at King's College London. Glover is a fellow of the Hastings Center, an independent bioethics research institution in the United States, and is a Distinguished Research Fellow at the Oxford Uehiro Centre for Practical Ethics.
Thomas Michael "Tim" Scanlon, usually cited as T. M. Scanlon, is an American philosopher. At the time of his retirement in 2016, he was the Alford Professor of Natural Religion, Moral Philosophy, and Civil Polity in Harvard University's Department of Philosophy, where he had taught since 1984. He was elected to the American Philosophical Society in 2018.
Julia Elizabeth Annas is a British philosopher who has taught in the United States for the last quarter-century. She is Regents Professor of Philosophy Emerita at the University of Arizona.
Jonathan Peter Dancy is a British philosopher, who has written on ethics and epistemology. He is currently Professor of Philosophy at University of Texas at Austin and Research Professor at the University of Reading. He taught previously for many years at the University of Keele.
J. David Velleman is Emeritus Professor of Philosophy and Bioethics at New York University and Miller Research Professor of Philosophy at Johns Hopkins University. He primarily works in the areas of ethics, moral psychology, and related areas such as the philosophy of action, and practical reasoning.
Peter Carruthers is a British-American philosopher and cognitive scientist working primarily in the area of philosophy of mind, though he has also made contributions to philosophy of language and ethics. He is a professor of philosophy at the University of Maryland, College Park, an associate member of Neuroscience and Cognitive Science Program, and a member of the Committee for Philosophy and the Sciences.
Henry Shattuck Richardson is an American philosopher, author, Professor of Philosophy at Georgetown University, and Senior Research Scholar at the Kennedy Institute of Ethics.
Raphael Demos was a Greek-American philosopher. He was Alford Professor of Natural Religion, Moral Philosophy and Civil Polity, emeritus, at Harvard University and an authority on the work of the Greek philosopher Plato. At Harvard, he taught Martin Luther King Jr.
Barbara Herman is the Griffin Professor of Philosophy and Professor of Law at the University of California, Los Angeles Department of Philosophy. A well-known interpreter of Kant's ethics, Herman works on moral philosophy, the history of ethics, and social and political philosophy. Among her many honors and awards include a Guggenheim Fellowship (1985-1986) and election to the American Academy of Arts & Sciences (1995).
