John Stuart Mill
How far may society constrain an individual who harms no one? A in love with liberty, for whom the common happiness feeds on singular freedoms rather than crushing them.
English · 1806 – 1873
A major figure of British liberalism and heir to 's , philosopher, economist, logician and reformer, he was subjected from childhood by his father James Mill to an intensive education meant to make him the spokesman of philosophical radicalism. The depressive crisis he undergoes at twenty leads him to broaden that inheritance, making room within it for the cultivation of the feelings, for individual liberty and for a more demanding conception of happiness. A rigorous empiricist in the System of Logic, he sets out his ethics in Utilitarianism, his political philosophy in On Liberty and his feminism in The Subjection of Women, while serving in Parliament. A pivotal nineteenth-century thinker, he remains a central reference in debates on liberty, democracy and the foundation of morality.
Over what concerns himself alone, the individual is sovereign: society may coerce him only to prevent harm to others, never for his own good.
Pleasures differ in quality and not in quantity alone: better to be Socrates dissatisfied than a fool satisfied.
The free development of individuality is no private luxury but the very condition of progress, the source from which society as a whole draws.
The only judge of the worth of pleasures is the one acquainted with both: the verdict of the competent judges sets the pleasures of the mind at the top.
To silence an opinion is to claim infallibility: even a truth, if never contested, decays into a dead dogma.
Justification
All knowledge derives from experience: Mill denies any or a priori truths, even in mathematics, which he holds to be very well-confirmed inductive generalisations. The System of Logic makes induction the fundamental method of every science: a radical , in the line of and .
A System of Logic (1843), book II (the inductive character of mathematical truths) · A System of Logic, book III (the methods of induction)
Justification
The System of Logic codifies induction: it is the experimental methods (agreement, difference) that, from the observation of regularities, establish the laws of nature. Scientific knowledge is built from the particular toward the general.
A System of Logic, Book III
Justification
To silence an opinion presupposes that one knows it false, hence that one believes oneself infallible: yet no one is, and history is full of truths first persecuted. From this fallibility Mill draws the demand for debate: suppressing an opinion may rob us of a truth, and even a false one sharpens, by contradiction, the received truth, which without it decays into a dead dogma professed without grasp of its meaning. Doubt for him is thus no paralysing scepticism but the condition of living knowledge, which ranks him, without surrendering truth, on the side of .
To silence the expression of an opinion is to rob the human race; those who dissent from it still more than those who hold it.On Liberty, ch. 2
On Liberty, ch. 2 (the argument from fallibility and the dead dogma)
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Justification
The System of Logic aims to extend the inductive method of the natural sciences to moral and social facts, grounding a science of man (the moral sciences). This confidence in the unity of scientific method and its extension to the social marks a clear leaning, without thereby denying the specificity of human phenomena.
A System of Logic, book VI (on the logic of the moral sciences)
Justification
The refusal to exchange the higher faculties for an easier contentment suggests that human happiness includes a demand for dignity and development, even at the price of discontent; the preference for lucidity follows from this more than it is asserted in it.
It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.Utilitarianism, ch. 2
Utilitarianism, ch. 2 (1861)
Justification
Against the old objection that brands a doctrine fit for swine, Mill replies that it errs not about pleasure but about man: our higher faculties demand a happiness of another kind. Hence his break with 's purely quantitative calculus: pleasures differ in quality as well, and those of the intellect, the feelings and the imagination intrinsically prevail, because whoever knows both would not consent for anything to sink to the lower. At the heart of the argument lies a sense of dignity that an existence confined to bodily satisfactions would wound, which tilts Mill's hedonism toward a flourishing close to .
It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.Utilitarianism, ch. 2
Utilitarianism, ch. 2 (quality versus quantity of pleasures) · Utilitarianism, ch. 4 (happiness, the only thing desirable as an end)
Justification
Faithful to utilitarianism, Mill makes the reduction of suffering, together with the increase of happiness, the very end of morality: no pain is good in itself. He acknowledges that effort and ordeal can develop character, but never relinquishes the goal of a world where avoidable suffering would be abolished through moral and social progress.
Utilitarianism, II · On Liberty
Justification
Mill corrects Bentham's hedonism with a qualitative hierarchy: not all desires and pleasures are equal, those that engage the higher faculties are worthier than those of the body. The sorting no longer bears on quantity alone but on the quality of pleasures, against a background that affirms satisfaction as the end of life.
It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.Utilitarianism, ch. 2
Utilitarianism, ch. II
Justification
Mill holds our volitions to be caused like every phenomenon, in keeping with the principle of universal causation; but he refuses to read this as fate: character itself can be reshaped by our desires and efforts. This doctrine, which he distinguishes from fatalism, is a reconciling causal with an effective moral .
A System of Logic, book VI, ch. 2 (of liberty and necessity)
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Justification
Mill makes meaning depend on no cosmic purpose, which he holds undecidable: he locates it in the development of individuality and in devotion to ends beyond one's own interest, up to the service of humanity. A life has worth through the faculties it unfolds and the good it does, an immanent, cultivated meaning, not received from on high.
On Liberty, III · Utilitarianism, II-III
Justification
Mill judges the immortality of the soul neither provable nor refutable by reason: experience rather pleads for the end of consciousness with the body, but the question stays open. He grants that the hope of a future life, though without secure foundation, may have value for conduct, without one's being able to rely on it as on knowledge.
Three Essays on Religion (Theism)
Justification
Against the idea of a fixed nature to be poured into the molds of custom, Mill holds that human nature is not a machine, but a tree that must grow and unfold from within. Each has to choose his own plan of life: individuality and self-development prevail over any preset model, even if an organic ground remains to be cultivated.
On Liberty, ch. III
Justification
The depressive crisis Mill undergoes at twenty reveals to him the insufficiency of a purely analytic life: reading Wordsworth's poetry restores his sense of the value of inner culture and the cultivation of the feelings. Without renouncing reforming action, he henceforth grants a real place to the and self-formation.
Autobiography (posthumous, 1873), ch. 5 (a crisis in my mental history)
Justification
Mill seeks to ground morality on a fact rather than an undemonstrable intuition: the only proof that a thing is desirable, he argues, is that people actually desire it, and what everyone ultimately desires is happiness. Thence the as the sole criterion of the right, and the consequentialism he opposes to moral intuitionism and to alike: he charges Kant with being unable, in practice, to rule out a universalisable maxim except by invoking the desirability of its consequences, thus smuggling back the very utility he claimed to dismiss.
Actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness.Utilitarianism, ch. 2
Utilitarianism (1863), ch. 2 (the greatest happiness doctrine) · Utilitarianism, ch. 1 (critique of the Kantian a priori)
Justification
All conduct divides into what concerns the agent alone and what affects others: from this distinction Mill draws that coercion is never legitimate in the first sphere, where no one is a better judge of his own good than the person concerned. The harm principle follows: preventing harm to others is the only warrant for social power, never a person's supposed good. Mill thereby targets state paternalism and the tyranny of the majority alike, that diffuse despotism of opinion which, in a democracy, threatens the individual more surely than the tyrant of old.
The only purpose for which power can be rightfully exercised over any member of a civilised community, against his will, is to prevent harm to others.On Liberty, ch. 1
On Liberty (1859), ch. 1 (statement of the harm principle) · On Liberty, ch. 1 (the tyranny of the majority)
Justification
Because no form of life holds a priori for everyone and no one knows in advance what suits him, Mill makes liberty the condition of those experiments of living through which each tests and shapes his own character. Individuality is therefore no mere private amenity but the mainspring of all progress: it is from original minds that the new truths and practices the whole of society inherits arise. Hence his target, the despotism of custom and the conformism that level characters and dry up that source, a threat all the more pressing as the power of mass opinion grows.
Human nature is not a machine to be built after a model, but a tree, which requires to grow and develop itself on all sides.On Liberty, ch. 3
On Liberty, ch. 3 (of individuality as one of the elements of well-being)
Justification
A committed reformer, Mill sees in the progress of humanity the horizon of morals and politics. He campaigns for the extension of the suffrage, popular education, social reform and, in The Subjection of Women, for the emancipation of women, which he also carries into Parliament. Freedom of thought matters precisely because it is the engine of human improvement.
The Subjection of Women (1869), ch. 1 (sexual equality as a demand of progress) · On Liberty, ch. 2 (freedom of opinion as a condition of progress)
Justification
Mill judges a regime on two counts: what it does for public affairs and what it does to the citizens. Representative democracy wins because it best develops those who take part in it, yet that very participation exposes it to incompetence and the tyranny of the majority. His answer seeks to reconcile the two demands: a plural voting scheme that excludes no one from the franchise but weights votes by education, so that number does not silence competence, which inclines him toward .
Considerations on Representative Government (1861), ch. 8 (plural voting) · Considerations on Representative Government, ch. 3 (the superiority of representative government)
Justification
In the calculus of happiness, everybody to count for one, nobody for more than one: utilitarianism demands a strict , a strictly disinterested and benevolent spectator. The agent's own happiness counts no more than a stranger's, which Mill likens to the golden rule of Jesus of Nazareth.
Utilitarianism, ch. 2 (the disinterested and benevolent spectator) · Utilitarianism, ch. 5 (each to count for one, the formula ascribed to Bentham)
Justification
Mill rejects natural rights prior to any society and grounds rights in utility: to have a right is to have something society ought to secure for us because doing so serves the general well-being, utility in the largest sense, grounded in the permanent interests of humanity.
Utilitarianism, ch. V; On Liberty
Justification
The principle of On Liberty is negative: the only legitimate ground for constraining an individual is to prevent harm to others. Over himself, over his own body and mind, each is sovereign. Liberty is measured by the space shielded from interference.
On Liberty, ch. I
Justification
Since the moral criterion is pleasure and pain, the circle of moral concern extends to all sentient beings capable of suffering, not to humans alone: a pathocentrism. Mill explicitly counts the happiness of animals in the utilitarian calculus and supports early legislation against cruelty toward them.
Utilitarianism, ch. 2 (the happiness of all sentient creatures) · Whewell on Moral Philosophy (1852), on the moral standing of animals
Justification
The moral end is not the agent's happiness but the general happiness: the utilitarian virtue is , devotion to the good of all. Mill accordingly admires the spirit of sacrifice when it serves another's happiness, while denying any value to a sacrifice that increases no one's sum of happiness.
Utilitarianism, ch. 2 (sacrifice has value only if it increases happiness)
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Justification
Concerned with the condition of workers, Mill criticises the distribution of wealth under laissez-faire and, in his later years, leans toward forms of cooperative socialism and limits on inheritance. The principle of utility, which counts each person's happiness equally, and the diminishing marginal utility of income tilt his distributive justice toward , without abolishing the market.
Principles of Political Economy (1848), book II (on distribution, socialism and inheritance) · Utilitarianism, ch. 5 (each to count for one, all happiness counted equally)
Justification
The principle of utility knows no borders: the happiness of all humanity is its measure, giving Mill's morality a reach. He condemns slavery wherever it occurs and judges progress by the improvement of the lot of all mankind, beyond national belonging.
Utilitarianism, ch. 2 (the happiness of all concerned) · The Contest in America (1862), against slavery
Justification
Maximising the general happiness exposes one to a potentially very heavy moral demand, since any action can be weighed against the greatest good. Yet Mill tempers this maximalism: everyday conduct is governed by tried secondary rules, and he does not expect from everyone the constant motive of the universal good, only that one do no harm and contribute on occasion.
Utilitarianism, ch. 2 (the secondary rules and the motive of actions)
Justification
Mill denies that utility must be recomputed at each act: humanity has accumulated, through experience, secondary rules (do not lie, do not kill) that condense the lessons of what serves happiness. These rules guide ordinary conduct, yet remain subordinate to the principle of utility and may yield in cases of conflict: a tempered legalism, open to .
Utilitarianism, ch. 2 (the corollaries of the principle and conflicts of rules)
Justification
Justice itself reduces, for Mill, to a demand of utility: punishment is justified not by the retribution of a past wrong but by its effects, the deterrence and protection of society, and secondarily the reform of the offender. He rejects the notion of a desert of punishment independent of its consequences, without excluding rehabilitation.
Utilitarianism, ch. 5 (justice and punishment reduced to utility)
Justification
The principle of utility serves as a universal criterion of the good, the same for all men and all ages: Mill does not relativise morality to cultures. The good is an objective fact, happiness, measurable by its effects, which ranks him on the side of a naturalistic rather than relativism.
Utilitarianism, ch. 2 and 4 (the greatest happiness principle as a universal criterion)
Justification
Truthfulness ranks among the rules of highest utility, for mutual trust is the foundation of social well-being, and to weaken it harms all. Mill thus holds lying to be gravely harmful; but, utility remaining the ultimate criterion, he admits rare recognised exceptions, which keeps him clearly, without absolutism, on the side of truthful rigorism.
Utilitarianism, ch. 2 (veracity, a rule of transcendent utility, and its exceptions)
Justification
Distinguishing higher pleasures raises a difficulty: by what measure does one rank a quality that, by definition, does not reduce to quantity? Mill's original answer is an empirical criterion: the only judge is comparative experience, the settled preference of those who have known both orders of pleasure alike, the competent judges. Their verdict leans toward the pleasures of the mind, even at the cost of a lesser contentment. The resulting is therefore no matter of birth or class but of cultivation and experience, in principle open to all.
Utilitarianism, ch. 2 (the verdict of the competent judges)
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Justification
For the empiricist Mill, the mind is largely shaped by experience, education and the association of ideas rather than by a fixed nature. In The Subjection of Women he argues that the alleged feminine nature is in fact a product of custom and education: a that makes character a modifiable social construction.
The Subjection of Women, ch. 1 (women's character as a product of upbringing) · A System of Logic, book VI, ch. 4-5 (ethology, the science of the formation of character)
Justification
Raised without religion, Mill examines the question of God in terms of empirical proof: the argument from design makes at most probable a creator of limited power and goodness, never an omnipotent God compatible with the world's evil. This agnosticism, which allows only a faint hope of an afterlife, places him slightly on the side of unbelief.
Three Essays on Religion (posthumous, 1874), Theism
Justification
Trained by his father in the cult of analysis and reasoning, Mill realises after his crisis that intellect alone withers: one must also cultivate the feelings and sensibility, which poetry and art nourish. Without denying reason's primacy in knowledge, he gives the emotions their due as an irreducible part of a good life, hence a near-central position.
Autobiography, ch. 5 (the cultivation of the feelings and the debt to Wordsworth)
The question of machine minds (artificial intelligence, functionalism) postdates Mill and does not arise in his work.