Frances Myrna Kamm (b. c. 1947) is one of the most rigorous and influential moral philosophers working in the contemporary analytic tradition. She built her academic career at institutions including NYU, Rutgers, and Harvard, where she taught for many years at both the Kennedy School of Government and the philosophy department. Her central intellectual project is the development of a non-consequentialist theory of moral rights and permissible harm that is at once normatively precise and methodologically transparent. Against ethical frameworks that evaluate actions solely by their outcomes, Kamm argues that there are genuine deontological constraints — moral structures that determine what may be done to a person regardless of how much overall good such an act would produce.
The most distinctive feature of Kamm’s work is what she calls the “method of cases”: the analysis of an extraordinarily large number of finely varied hypothetical scenarios — many drawn from or inspired by Philippa Foot’s trolley problem and Judith Jarvis Thomson’s variations — with the aim of extracting moral principles from carefully examined intuitions. For Kamm, well-calibrated intuitions about concrete cases are not mere psychological data to be explained away; they constitute normative evidence about the structure of morality. This method has made her work both an indispensable reference point and a privileged target in methodological debates about the role of intuitions in ethics.
Key Concepts
- Principle of Permissible Harm: formulated at length in Morality, Mortality and refined in Intricate Ethics, the principle distinguishes the conditions under which harming someone is morally permissible. Kamm identifies a set of structural variables — whether the harm is intended as a means or merely foreseen as a side effect, whether the harm is directed or merely redistributed, what the causal relationship is between the agent’s action and the victim’s suffering — that together determine permissibility.
- Refinement of the doctrine of double effect: the traditional doctrine of double effect distinguishes intended harms from harms that are foreseen but not intended. Kamm deepens and critiques this distinction, showing that it fails to capture all morally relevant variables; she proposes refinements that take into account factors such as the direction of harm and the causal role of the victim.
- Case method and moral intuitions: Kamm develops the analysis of variations on hypothetical cases as a tool for discovering underlying moral principles. The controlled proliferation of scenarios — “What if the trolley could only be redirected by the victim’s own physical effort?” — reveals moral asymmetries that general theories tend to conceal.
- Inviolability and rights: for Kamm, persons have an inviolability that functions as a constraint on instrumentalization — a Kantian echo of the claim that rational beings may not be treated merely as means. This inviolability is not absolute, but it carries sufficient weight to block actions that a consequentialist framework would readily recommend.
- Moral status and permissibility in bioethics: in Bioethical Prescriptions (2013), Kamm applies her framework to abortion, euthanasia, the allocation of healthcare resources, and other clinical questions, demonstrating that precise philosophical analysis yields distinctions that informal bioethical reasoning frequently overlooks.
Influenced by
- Kant — deontological defense of the inviolability of persons and the prohibition on treating rational beings merely as means
- Judith Jarvis Thomson — direct interlocutor; trolley variations and thought experimentation in ethics
- Philippa Foot — the trolley problem and the doctrine of double effect
- Thomas Nagel — deontological structure of agent-relative constraints
Influenced
- Joshua Greene — debate over the role of intuitions and moral neuroscience
- Contemporary analytic normative ethics, especially debates on deontology and consequentialism
- Philosophical bioethics, particularly on end-of-life issues and resource allocation
Debated with
- Peter Unger — in Living High and Letting Die (1996), Unger argued that case-based intuitive judgments constitute an invalid methodology for ethics; Kamm responded directly to this critique in Intricate Ethics (2007), defending the normative evidential role of well-calibrated intuitions
Works
- Morality, Mortality, vol. I: Death and Whom to Save from It (Oxford University Press, 1993)
- Morality, Mortality, vol. II: Rights, Duties, and Status (Oxford University Press, 1996)
- Intricate Ethics: Rights, Responsibilities, and Permissible Harm (Oxford University Press, 2007)
- Bioethical Prescriptions: To Create, End, Choose, and Improve Lives (Oxford University Press, 2013)
See also
Judith Jarvis Thomson, Philippa Foot, Thomas Nagel, Kant