Nozick's Libertarianism

The argument in plain language

Nozick begins with a single moral claim: individuals have rights — to their lives, their bodies, and what they justly acquire — and these rights are side constraints on what others, including the state, may do. They are not goals to be maximised; they are walls that may not be breached even to produce better outcomes overall. From this premise everything else in the book unfolds.

If rights are absolute side constraints, then taxation for redistribution looks suspicious. Taking the fruits of A's labour to give to B treats A as a means to B's welfare. Nozick puts it sharply: "Taxation of earnings from labour is on a par with forced labour." A state that does this is not just inefficient; it is morally illegitimate.

What survives the cut? Only the minimal state: a "night-watchman" entity confined to protecting against force, theft and fraud, enforcing contracts, and providing a court system. Anything beyond — public health insurance, redistributive welfare, mandated retirement saving, progressive taxation — counts as an aggression against the right-bearing individual, however benevolent its intention.

The entitlement theory of justice

Nozick's positive proposal is the entitlement theory, defined by three principles in chapter 7 of Anarchy, State, and Utopia:

1. Justice in acquisition. An individual may justly come to own something previously unowned, subject to a Lockean proviso roughly preventing them from making others worse off than they would have been without any appropriation.
2. Justice in transfer. Holdings that pass voluntarily — by sale, gift, bequest — from one rightful owner to another remain just.
3. Rectification of injustice. Where past holdings were acquired or transferred unjustly (theft, fraud, conquest), the principle of rectification requires that the situation be made right, as far as possible.

Crucially, the entitlement theory is historical: a distribution is just if it has the right history. There is no separate end-state criterion — no asking whether it is "fair," whether it tracks need, merit, or equality. That kind of test is what Nozick calls a patterned principle, and his most famous argument is designed to show that any patterned principle is incompatible with liberty.

Nozick's libertarianism vs other theories of justice

	Nozick	Rawls	Utilitarianism	Marxism	Classical liberalism (Locke)	Anarcho-capitalism (Rothbard)
Justice criterion	Historical entitlement	Difference principle	Aggregate utility	From each per ability, to each per need	Natural rights + consent	Voluntary contract only
Role of the state	Minimal (protection)	Redistributive	Whatever maximises utility	Wither away after socialism	Protect natural rights	None — replace with market firms
Status of taxation	Suspect; near forced labour	Required for justice	Permissible if utility-positive	Symptom of class state	Permissible for protection	Theft
Inequality	Permissible if from voluntary trades	Only if benefits worst-off	If utility-maximising	To be abolished	Permissible	Permissible
Property rights	Side constraints	Subject to social rules	Instrumental	Collective	Strong, prior to state	Absolute
View of community	Voluntary frameworks	Background institutions	Aggregate of welfares	Material basis	Civil society	Voluntary firms

The right-most column shows the position Nozick is defending against in part one of the book. Rothbard's anarcho-capitalism denies any state is justified; Nozick wants to derive a minimal state from libertarian premises without violating rights. Part one is his attempt to do so via the "invisible hand" emergence of a dominant protective association.

Worked example: the Wilt Chamberlain argument

The most celebrated argument in Anarchy, State, and Utopia appears in chapter 7. It is meant to be a knockout blow against patterned theories — including Rawls'. Nozick's setup is disarmingly simple.

Pick whatever distribution of wealth you regard as just. Call it D₁. Maybe D₁ is perfectly equal: every adult has exactly the same. Maybe it follows Rawls' difference principle. Maybe it tracks need, or moral desert. The choice is yours.

Now: Wilt Chamberlain — a real basketball star of the era, picked partly for his outsize charisma — signs a contract that says one million people who attend a game each drop 25 cents extra into a separate box marked "Wilt." Suppose a million fans show up over a season and pay it gladly; they value seeing Wilt play more than the quarter. After the season, Wilt has $250,000 above his salary. The distribution has shifted from D₁ to D₂.

D₂ is unequal. But on what grounds is it unjust? Each transfer was voluntary. Each fan was entitled to the quarter, did with it what they wished, and got something they preferred in exchange. Wilt was entitled to receive what he was freely given. If you say D₂ is unjust because it violates the chosen pattern, you must also say that maintaining any pattern requires either:

• Forbidding free exchanges that would disrupt the pattern, or
• Continuously redistributing after they happen.

"Liberty," Nozick writes, "upsets patterns." The lesson is general: any patterned theory of distributive justice is incompatible with treating people as right-bearing agents free to use their justly-held resources as they choose. The conclusion is meant to apply to Rawls' difference principle, to strict equality, to need-based theories, to desert-based theories — to all of them.

Major objections

Cohen's labour critique

The most sustained reply came from G. A. Cohen, the Marxist political philosopher, in Self-Ownership, Freedom, and Equality (1995). Cohen attacks the Wilt Chamberlain argument by questioning the assumption that the initial situation is genuinely free. Real workers cannot meaningfully "freely" exchange labour if the alternative is starvation. Property in external resources, unlike property in oneself, has to be defended — and the defence Nozick gives, Cohen argues, smuggles in unargued background structures (a labour market, a money economy) that already advantage some over others.

Cohen also presses on the Lockean proviso. If the only land left to a late-arriving generation has been parcelled out, the proviso that "enough and as good" remain seems decisively violated. Either the proviso is so weak that initial appropriation justifies almost anything, or so strong that historical capitalism cannot pass it.

Rawls and the difference principle

Although Rawls did not reply directly, the standard Rawlsian rejoinder is that Nozick mistakes the proper subject of justice. For Rawls, justice is a property of the basic structure of society — the constitution, the property regime, the labour and tax laws — not of individual transactions inside that structure. Once you accept that the rules under which Wilt and the fans transact are themselves objects of justice, asking whether each transfer respects rights is no longer the only question. The system as a whole has to be justified to those who do worst within it.

Self-ownership and external resources

A wider line of criticism, developed by Will Kymlicka and others, holds that even granting full self-ownership over your body and labour does not entail the strong property rights Nozick wants over external resources. The leap from "I own myself" to "I own this plot of land in perpetuity, including the right to bequeath it" is exactly the step his Lockean proviso is meant to license — and many readers think the proviso is too thin to bear the weight.

Rectification swallows the theory

The third entitlement principle — rectification of past injustice — is famously underdeveloped. If it is taken seriously, the actual distribution of wealth in the United States, the United Kingdom, or any country with a colonial or slaveholding past would require massive redistribution before the entitlement theory could apply. Nozick admitted he had no detailed account of how rectification should work; critics point out that this hole is, in practice, where most of the political action lies.

Variants and the wider libertarian map

• Minarchism / night-watchman state. Nozick's exact position: the state is justified, but only in protecting rights.
• Anarcho-capitalism. Murray Rothbard, David Friedman: even protection should be provided by competing private agencies, with no state at all.
• Left-libertarianism. Hillel Steiner, Peter Vallentyne: accept self-ownership but treat external natural resources as commonly owned, generating a basic income from rents.
• Bleeding-heart libertarianism. Matt Zwolinski, John Tomasi: market institutions defended on consequentialist grounds because they help the poor, not on Nozickian deontological grounds.
• Classical liberalism. The Lockean ancestor — natural rights protected by a constitutional state with broader functions than the night-watchman variant.
• Geolibertarianism. Henry George's land-value tax tradition: defend property in labour but not in land itself.

Why the book mattered

In 1971, John Rawls published A Theory of Justice — the most ambitious work of liberal egalitarian philosophy in the 20th century. Three years later Nozick, then a young Harvard colleague, published Anarchy, State, and Utopia, an explicit counterargument written in a more aphoristic and freewheeling style. The two books were lashed together in syllabi for the next half-century. Nozick's victory at the National Book Award helped legitimise libertarian political philosophy as a respectable academic field rather than a fringe movement, and prepared the soil in which 1980s public-policy libertarianism took root.

Nozick himself moved on. His later books — Philosophical Explanations (1981), The Examined Life (1989), Invariances (2001) — barely mention politics. In The Examined Life he wrote that he had come to find the position of Anarchy, State, and Utopia "seriously inadequate" because it ignored the importance of "joint and official symbolic statement" of community values. He never retracted the core arguments, but they were no longer his project.

Common confusions

• Libertarian ≠ libertine. Nozick is making a claim about the legitimate scope of state coercion, not a recommendation that everyone live licentiously. A libertarian society could be deeply traditional in its private morals.
• The minimal state is still a state. Nozick spends the first part of the book arguing against the anarchist. Police, courts, contract enforcement — these are not optional.
• The Wilt Chamberlain argument is about pattern, not inequality. Even radical egalitarians who happily allow voluntary exchanges among equals face it. The question is not "is inequality bad?" but "is any patterned criterion compatible with liberty?"
• Self-ownership is the load-bearing premise. Most replies — Cohen's, Rawls', the left-libertarian one — ultimately attack either the strength of self-ownership or the claim that it extends naturally to external property.
• Nozick is not Rand. He cites Ayn Rand as a wider influence on libertarianism but does not endorse her ethical egoism. His framework is deontological — about rights — not about heroic individual flourishing.