Robert Nozick was an American political philosopher and professor at Harvard, whose Anarchy, State, and Utopia (1974) became the most systematic and rigorous libertarian response to John Rawls’s theory of justice, reorienting anglophone political-philosophical debate for decades. Beyond political philosophy, he made original contributions to epistemology, metaphysics, and ethics.
Key Concepts
Rights as Side Constraints (Anarchy, State, and Utopia, 1974): Nozick holds that individual rights are side constraints on action — not factors to be maximised within a calculation, but limits that cannot be violated even when violation would produce better outcomes for the greatest number. Individual dignity prohibits using persons as mere means to others’ ends.
The Minimal State: The only justifiable state is the minimal state — limited to protecting citizens against violence, theft, and fraud, and to enforcing contracts. Any more extensive state that redistributes wealth violates the rights of individuals without their consent — it would be equivalent to forced labour (taxing the fruits of someone’s work to benefit another).
Entitlement Theory: A distribution of holdings is just if it results from just acquisitions and just transfers — the resulting pattern does not matter, only the history. Nozick distinguishes: (a) justice in acquisition — how previously unowned resources can be legitimately appropriated; (b) justice in transfer — how holdings pass between persons by voluntary exchange, gift, or bequest; (c) rectification — correction of historical injustices.
The Wilt Chamberlain Argument: Any “patterned” distribution (egalitarian, proportional, etc.) will be upset by voluntary exchanges. If each person freely gives a penny to Wilt Chamberlain to watch him play, the original pattern is disrupted — yet no right has been violated. Thus, respecting freedom upsets patterns; imposing patterns requires continuous interference with freedom.
Critique of Rawls: Rawls’s difference principle (inequalities are justified only if they benefit the least advantaged) treats society as if its resources were a pie to be distributed. But resources already belong to someone — the result of choices, efforts, and free exchanges. There is no neutral “social distribution” to be (re)made.
Later Philosophy: Philosophical Explanations (1981) explores epistemology (subjunctive conditionals as an analysis of knowledge), metaphysics of personal identity, and ethics, in a more tentative style than the assertive tone of Anarchy. The Examined Life (1989) is more personal and reflective. The Nature of Rationality (1993) examines practical and theoretical rationality.
Influenced by
- Locke — natural rights theory and property
- Kant — the imperative not to use persons as mere means
- Rawls — as his principal interlocutor (explicit confrontation)
- Murray Rothbard — radical libertarianism (incorporated and moderated)
Influenced
- Libertarian and classical liberal political philosophy
- Anarcho-capitalist and minarchist theories
- Debates on property, redistribution, and social rights
Works
Anarchy, State, and Utopia (1974); Philosophical Explanations (1981); The Examined Life (1989); The Nature of Rationality (1993); Socratic Puzzles (1997); Invariances: The Structure of the Objective World (2001).
See also
Twentieth-Century Philosophy Contractualism and Enlightenment
Recommended books:
Anarchy, State, and Utopia — Robert Nozick
Ver na Amazon →