Alasdair MacIntyre, the influential Scottish-American philosopher and author of After Virtue, died on May 21, 2025, at age 96. A prominent figure in moral and political philosophy, MacIntyre held academic positions at institutions including Notre Dame, Duke, and Boston University throughout his career.
Academic Career and Intellectual Nomadism
Born in Glasgow on January 12, 1929, to Eneas and Greta (Chalmers) MacIntyre, Alasdair Chalmers MacIntyre maintained a career that spanned over seven decades. He began teaching in 1951 at the University of Manchester, where he had previously earned a Master of Arts degree under the guidance of philosophy teacher Dorothy Emmet.
MacIntyre’s career was characterized by frequent moves between academic institutions, earning him a reputation as an “intellectual nomad.” His teaching history includes tenures at the University of Leeds, the University of Essex, and the University of Oxford before he relocated to the United States around 1969.
John A. He remained a permanent senior distinguished research fellow at the Notre Dame de Nicola Center for Ethics and Culture and a senior research fellow at the Centre for Contemporary Aristotelian Studies in Ethics and Politics (CASEP) at London Metropolitan University.
Philosophical Contributions and After Virtue
His intellectual journey saw a notable shift in the late 1950s. Initially a Marxist, MacIntyre sought to develop an ethics that could condemn Stalinism. This project eventually led him to reject Marxism and modern liberal individualism, prompting him to advocate for Aristotelian ethics as a means to restore moral agency within communities. Which Rationality? (1988) and Three Rival Versions of Moral Enquiry (1990), further examined the role of traditions in moral judgment.
Professional Recognition and Thomistic Philosophy
MacIntyre’s impact on philosophy earned him numerous honors and memberships in prestigious societies. He served as president of the American Philosophical Association and was elected to the American Academy of Arts and Sciences in 1985, the British Academy in 1994, the Royal Irish Academy in 1999, and the American Philosophical Society in 2005. In 2010, the American Catholic Philosophical Association awarded him the Aquinas Medal.
Although MacIntyre identified as a Thomist starting in 1984, his interpretation of the philosophy has been a subject of academic discussion. While he focused on Thomas Aquinas’s treatment of human agency, he diverged from the neo-Thomist project of establishing moral epistemology based on the metaphysics of human nature. Despite this, he remains a central figure in the advancement of Thomistic philosophy and the study of virtue ethics.
His Aristotelian account of agency has found application in business ethics. Scholars in that field have utilized his frameworks to explore ways of renewing moral agency and practical rationality within organizational systems. MacIntyre is survived by his third wife, Lynn Joy, and their children.
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