Consequentialism
Consequentialism is the moral theory that asks a ruthless but clarifying question: if you strip away motive, status, and tradition, should an action be judged only by the world it leaves behind?
Quick Facts
- Period
- 1700 – present
- Region
- Europe
- Key Figures
- Bernard Williams, G. E. Moore, Henry Sidgwick +3 more
Key Figures
Bernard Williams
Critic
Oxford moral philosophyBernard Williams was one of consequentialism’s most formidable critics because he attacked it at the level of moral psyc...
G. E. Moore
Critic/Successor
Cambridge philosophyGeorge Edward Moore was remembered in philosophy as a man of restraint, but that restraint should not be mistaken for pa...
Henry Sidgwick
Developer
Cambridge moral philosophyHenry Sidgwick stands as one of the most austere and intellectually exacting moral philosophers of the nineteenth centur...
J. J. C. Smart
Proponent
Australian analytic philosophyJ. J. C. Smart was one of the clearest and most uncompromising twentieth-century defenders of act consequentialism, and ...
Jeremy Bentham
Originator
British utilitarianismBentham is the great architect of consequentialist moral thinking in its modern, programmatic form. He was not simply a ...
John Stuart Mill
Proponent
British utilitarianismJohn Stuart Mill inherited Bentham’s reforming utilitarianism, but he also inherited its vulnerability: the suspicion th...
The Story
This narrative combines documented history with dramatized scenes for storytelling purposes.
The World That Made It
Long before the word “consequentialism” was coined, the thought that conduct should be judged by what it produces was already troubling moral life from within. ...
The Central Idea
Consequentialism, stated plainly, is the view that the moral rightness of an act depends entirely on its outcomes. If an action brings about the best consequenc...
The System
Once the central claim is accepted, consequentialism becomes less a single thesis than a family of methods, each trying to keep faith with the same basic demand...
Tensions & Critiques
The most famous objection to consequentialism is that it can seem to require what ordinary morality forbids. If the right act is simply the one with the best re...
Legacy & Echoes
Consequentialism’s legacy is unusually broad because its method travels well. Economists, jurists, public health officials, and policymakers may never call them...
Timeline
Bentham is born in London
**1748** — Jeremy Bentham’s birth marks the beginning of the modern utilitarian project in a form that would later be called consequentialist. His life would become entwined with legal reform, prison design, and the effort to make morality public and measurable.
Publication of Bentham’s An Introduction to the Principles of Morals and Legislation
**1789** — Bentham lays out the pleasure-pain framework and the felicific calculus, giving modern consequentialism its canonical early form. The work is both theory and reform program, aimed at law, punishment, and social policy.
John Stuart Mill is born
**1806** — Mill would become the most influential nineteenth-century defender of utilitarianism and the key figure in making consequentialism hospitable to dignity, individuality, and higher pleasures. His later work would soften Bentham’s austerity without abandoning the central role of outcomes.
Mill publishes On Liberty
**1859** — Although not a direct statement of consequentialism, On Liberty becomes one of the theory’s most enduring political expressions. It argues for strong protections of individuality and free discussion on broadly consequential grounds.
Mill publishes Utilitarianism
**1861** — This essay gives the clearest nineteenth-century defense of utilitarian ethics and refines the conception of happiness by distinguishing higher and lower pleasures. It becomes a central text for later consequentialists and their critics.
Sidgwick publishes The Methods of Ethics
**1874** — Sidgwick’s book systematizes ethical theory and gives consequentialism one of its most rigorous classical defenses. It also exposes a deep problem in practical reason: the tension between impartial duty and rational egoism.
Moore publishes Principia Ethica
**1903** — Moore rejects the reduction of goodness to natural properties such as pleasure, changing the terrain on which consequentialists must argue. His ideal utilitarianism also broadens the kinds of goods that consequentialists can count.
Postwar ethical reconstruction intensifies interest in public welfare reasoning
**1947** — After the catastrophes of the first half of the twentieth century, philosophers and policymakers increasingly turn toward impartial welfare, institutions, and expected outcomes. Consequentialist modes of reasoning gain renewed practical resonance in policy and political theory.
Smart and Williams debate utilitarian ethics
**1973** — The exchange between J. J. C. Smart and Bernard Williams crystallizes the modern dispute over consequentialism’s scope and moral psychology. It helps define the terms of late twentieth-century debate about integrity, rules, and maximizing value.
Parfit’s Reasons and Persons reshapes population and aggregation debates
**1982** — Derek Parfit’s work revitalizes consequentialist and near-consequentialist questions by showing how hard it is to compare outcomes across persons and generations. Population ethics becomes a major new arena for consequentialist analysis.
Consequentialism becomes central in effective altruism’s intellectual background
**2000** — Though the movement is broader than academic philosophy, effective altruism popularizes a strongly consequentialist style of reasoning about donations, careers, and global priorities. The idea of maximizing impact becomes a public moral idiom.
Consequentialist reasoning remains central in AI, climate, and bioethics debates
**2024** — Questions about expected harm, large-scale risk, and trade-offs across future generations keep consequentialism at the center of contemporary ethical disputes. The theory remains both a practical tool and a target of renewed criticism.
Sources
- primary_textBentham, Jeremy. An Introduction to the Principles of Morals and Legislation. Edited by J. H. Burns and H. L. A. Hart. Clarendon Press, 1970.
Classic formulation of utilitarian-consequentialist method and the felicific calculus.
- primary_textMill, John Stuart. Utilitarianism. Edited by Roger Crisp. Oxford University Press, 1998.
Canonical nineteenth-century defense of utility and higher pleasures.
- primary_textSidgwick, Henry. The Methods of Ethics. 7th ed. London: Macmillan, 1907.
Major classical defense and systematization of utilitarian ethics.
- primary_textMoore, G. E. Principia Ethica. Cambridge University Press, 1903.
Important critique of naturalistic reduction and source for ideal utilitarianism.
- referenceConsequentialism. Stanford Encyclopedia of Philosophy.
Standard overview of the theory, its variants, and major objections.
- referenceUtilitarianism. Internet Encyclopedia of Philosophy.
Accessible scholarly introduction to utilitarian and consequentialist ethics.
- scholarly_bookMulgan, Tim. Understanding Utilitarianism. Routledge, 2007.
Clear contemporary treatment of utilitarianism’s structure and challenges.
- scholarly_bookHurka, Thomas. Perfectionism. Oxford University Press, 1993.
Useful for contrasts between consequentialist and non-consequentialist value theories.
- scholarly_bookParfit, Derek. Reasons and Persons. Oxford University Press, 1984.
Seminal work for population ethics and aggregation problems relevant to consequentialism.
- scholarly_bookScheffler, Samuel. The Rejection of Consequentialism. Oxford University Press, 1982.
Influential philosophical critique of impartial maximizing ethics.
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