The Alford Professor of Natural Religion, Moral Philosophy, and Civil Polity at Harvard University retired in 2016 after a career centered on defining the normative domain of human interaction. Thomas Michael Scanlon, known professionally as T. M. Scanlon, established a framework for moral theory that emphasizes mutual recognition between rational agents, fundamentally reshaping contemporary discourse on justice and ethics.
Academic Background and Early Career
Born in 1940 in Indianapolis, Indiana, Scanlon completed his undergraduate studies at Princeton University in 1962. He later pursued doctoral work at Harvard University, receiving his PhD in 1968 under the supervision of Burton Dreben. His early research trajectory was rooted in mathematical logic, specifically proof theory. He spent one year at Oxford University as a Fulbright Scholar before joining the faculty at Princeton, where he served from 1966 until 1984.
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After establishing his early work in mathematical fields, Scanlon shifted his primary focus toward ethics and political philosophy. At Harvard, he instructed courses covering equality, theories of justice, and contemporary ethical theory. His scholarly contributions are influenced by the traditions of John Rawls, Immanuel Kant, and Jean-Jacques Rousseau, leading to his unique development of contractualism. His published works include the 1998 book What We Owe to Each Other and the 2003 collection of papers titled The Difficulty of Tolerance.
The Contractualist Framework
Scanlon developed a constructivist approach to morality labeled contractualism. He defines the rightness or wrongness of actions based on whether they conform to principles that individuals, motivated to reach an agreement, could not reasonably reject. This account views morality as a form of mutual recognition among rational creatures. His work addresses diverse topics including human rights, freedom of speech, contract law, and conceptions of welfare, grounding moral judgments in the practical reasons agents have for their conduct.
Honors and Professional Recognition
Throughout his career, Scanlon received significant professional recognition. He was awarded a MacArthur Fellowship in 1993 and a Guggenheim Fellowship in 1989. In 2016, he received the Lauener Prize. He is a member of the American Academy of Arts and Sciences and was elected to the American Philosophical Society in 2018. He remains an influential figure in the study of morality and society.
Fast facts
- Born: 1940, Indianapolis, United States
- Undergraduate Degree: Princeton University, 1962
- Doctoral Degree: Harvard University, 1968
- MacArthur Fellow: 1993
- Lauener Prize Winner: 2016
- Fields of work: Philosophy, Ethics, Political Philosophy, Proof Theory
- Academic Tenure: Princeton University (1966–1984); Harvard University (1984–2016)
Questions readers ask
What is the core idea of Scanlon's contractualism?
It suggests that an act is wrong if it violates a principle that no one, motivated by a desire to reach an agreement, could reasonably reject.
What academic roles did Scanlon hold before retiring?
He served as the Alford Professor of Natural Religion, Moral Philosophy, and Civil Polity at Harvard University.
Achievements
- Lauener Prize — 2016
- Held posts at Princeton University and Harvard University
- Fields: proof theory, philosophy and political philosophy

