What Is Justice as Fairness? Rawls's Theory Explained

Direct Answer

Justice as fairness is the name the American philosopher John Rawls gives his theory of justice, developed principally in A Theory of Justice (1971). Its central idea is that the principles governing the basic structure of society — its major political, economic, and social institutions — are those that free, equal, and rational persons would agree to if they chose from a position of equality. Rawls calls this starting point the "original position," and he renders its equality through a veil of ignorance that deprives the parties of any knowledge of their place in society, their talents, their values, or their station in life. The name "justice as fairness" signals the theory's defining move: the fairness of the procedure by which principles are chosen is meant to guarantee the fairness of the principles themselves.

From this starting point Rawls argues that the parties would agree to two principles. The first secures for each person an equal right to the most extensive scheme of basic liberties compatible with a like scheme for all — liberties of conscience, thought, association, and political participation. The second governs the distribution of social and economic goods: inequalities are permissible only if they are attached to offices and positions open to all under conditions of fair equality of opportunity, and only if they work to the greatest benefit of the least advantaged. This final clause is the celebrated "difference principle." The two principles are ordered lexically: basic liberty may not be sacrificed for economic gain, and fair equality of opportunity takes priority over the difference principle.

What makes the theory distinctive is not any single principle but the method of derivation. Rather than asserting that equality or liberty or utility is the foundation of justice, Rawls asks what we would agree to under conditions that model our status as free and equal. The principles earn their authority from the fairness of their selection, not from a metaphysical claim about what justice "really" is. This procedural ambition — to derive substantive principles from a fair starting point — is the heart of justice as fairness.

Historical Context

Rawls wrote against a background in which utilitarianism had become the prevailing framework for thinking about social justice. For Bentham and Mill, the right arrangement of society was the one that maximized aggregate happiness, and the justice of an institution was determined by its contribution to that total. Rawls believed this approach was fundamentally flawed because it failed to take seriously the separateness of persons. In a utilitarian calculus, a loss borne by one person can be outweighed by a gain enjoyed by another, as if society were a single person whose experiences could be summed. Rawls insisted that individuals are distinct: my suffering cannot simply be canceled by your pleasure, and a society is not entitled to sacrifice some of its members for the greater good of others.

The alternative Rawls pursued lay in the social contract tradition of Locke, Rousseau, and Hobbes, which had fallen out of philosophical fashion. The contract theorists had imagined a state of nature in which individuals agree to establish political authority, and they differed over what that agreement would yield. Rawls took the contract's central insight — that legitimate principles are those that free and equal persons would agree to — and recast it as a purely moral device rather than a historical conjecture. His original position is a hypothetical choice situation whose purpose is to model the conditions under which agreement would be fair.

The other decisive influence was Kant. Rawls described his theory as Kantian constructivism: the principles of justice are not discovered in an independent order of moral facts but constructed by rational agents under conditions that express their nature as free and equal autonomous beings. The veil of ignorance enforces a Kantian discipline, screening off the contingencies of talent, class, and inclination that would let one person's interests override another's. In this way justice as fairness joins the contract tradition to Kant's conception of the moral agent, producing a theory that is at once procedural, contractual, and constructivist.

Philosophical Perspectives

The Two Principles and Their Priority

The substance of justice as fairness lies in the two principles and the way they are ordered. The first principle protects basic liberties, and its lexical priority means that no amount of social or economic advantage can justify infringing them. A society cannot trade away freedom of conscience for greater prosperity, because liberty is not a commodity to be weighed in a utility calculus. The second principle addresses the inequalities that liberty alone does not resolve. Its two parts work together: fair equality of opportunity requires that positions of advantage be genuinely open to all, not reserved for a privileged few by birth or circumstance; the difference principle then permits inequalities only insofar as they raise the position of the worst-off. The result is not strict equality but a constrained inequality — one allowed only when it works to everyone's advantage, and especially to the advantage of those who have least.

The difference principle is the most controversial and the most distinctive element of the theory. It treats the distribution of natural talents and social starting points as neither deserved nor undeserved in any morally relevant sense — they are, in Rawls's phrase, "common assets." Because no one earned the talents or circumstances they were born with, the benefits that flow from them are not straightforwardly theirs to keep. The difference principle channels those benefits so that they improve the life prospects of everyone, including the least fortunate. It is a principle of reciprocity among equals, not a demand for leveling.

Reflective Equilibrium and Justification

Rawls does not claim that the original position is self-evidently the right starting point. He justifies it through a method he calls "reflective equilibrium." We begin with our considered moral judgments — the convictions we hold under favorable conditions, free from distortion and self-interest — and we test both them and the principles proposed to organize them, adjusting each in light of the other until they cohere. The original position is, in effect, the construction that best systematizes our considered judgments about fairness, freedom, and equality. This makes the theory non-foundational in an important sense: its authority comes from the fit between its principles and our reflective moral convictions, not from an appeal to a source outside moral reasoning altogether.

The Basic Structure as the Subject of Justice

A crucial and often overlooked feature of the theory is that its primary subject is the basic structure of society — the framework of institutions that distributes fundamental rights and duties and shapes the life prospects of citizens. Rawls does not apply the difference principle to every individual transaction but to the design of institutions: constitutions, markets, property rules, the tax system, the family as it shapes citizens' prospects. This institutional focus distinguishes justice as fairness from theories that assess justice act by act, and it allows the theory to address the deep structures that generate inequality rather than only its surface symptoms.

Justice as Fairness Against Its Rivals

Against utilitarianism, the theory insists that each person's interests must be protected by principles they could not reasonably reject; the separateness of persons is built into the original position itself. Against libertarian theories of the sort later advanced by Robert Nozick, which ground justice in historical entitlement and self-ownership, justice as fairness holds that the pattern of holdings matters: a distribution is just not merely because it arose from just steps but because it conforms to principles that free and equal persons would endorse. The debate between Rawls and Nozick became one of the defining arguments of late-twentieth-century political philosophy, turning on whether justice is primarily about fair patterns or about individual entitlement.

Political Liberalism

In his later work, Political Liberalism (1993), Rawls recast justice as fairness as a political conception rather than a comprehensive moral doctrine. Modern democratic societies are marked by reasonable pluralism: citizens hold irreconcilable religious, philosophical, and moral views, and no single comprehensive doctrine can serve as the public basis of justification. Justice as fairness is therefore offered as a freestanding political conception, justified by appeal to public reason — reasons that all citizens, whatever their comprehensive view, can be expected to share. The hope is that the two principles can command an "overlapping consensus" among reasonable doctrines, providing a stable foundation for a just society without requiring agreement on ultimate questions. This shift did not abandon the original theory but broadened its ambition: justice as fairness became not only an account of what justice requires but an account of how a pluralist society can legitimately govern itself.

Modern Reflection

Justice as fairness transformed political philosophy. After A Theory of Justice, debate about social justice was conducted largely on Rawlsian terms, and even his critics framed their positions in response to his framework. The difference principle supplied a powerful lens for analyzing inequality: it asks not whether a distribution maximizes total welfare but whether the least advantaged are as well off as the basic structure can make them. This question continues to inform discussions of taxation, welfare, education, healthcare, and the design of institutions meant to secure fair opportunity.

The theory has also drawn searching criticism from several directions. Communitarian thinkers such as Michael Sandel and Alasdair MacIntyre challenged the conception of the person as prior to and independent of its ends, arguing that the unencumbered self behind the veil cannot capture the identities and commitments that actually constitute moral life. Feminist philosophers, notably Susan Moller Okin, pressed the question of whether justice as fairness adequately addresses the family as a site of injustice, given that the basic structure shapes citizens' prospects from birth. Cosmopolitan theorists such as Charles Beitz and Thomas Pogge argued that Rawls's restriction of the theory to a single domestic society was arbitrary, and that the difference principle should apply globally — a claim Rawls resisted in The Law of Peoples. The capabilities approaches of Amartya Sen and Martha Nussbaum, while indebted to Rawls, argued that justice should focus on what people can actually do and be, not only on the resources they command.

These criticisms have not displaced justice as fairness so much as sharpened it. The theory's enduring power lies in the simplicity and force of its guiding question: what would we agree to, if we did not know who we would be? That question reframes every debate about inequality, freedom, and rights, demanding that the powerful justify their advantages to those who have none. Whether one accepts Rawls's answers in full or not, the standard he set — that the basic structure of society must be defensible to every citizen as a free and equal person — remains the measure against which theories of justice are still tested.

Related Thinkers

• John Rawls — Originated justice as fairness, arguing that fair principles are those chosen in the original position behind the veil of ignorance.
• Immanuel Kant — Inspired Rawls's constructivism and the conception of persons as free and equal autonomous legislators of moral principle.
• John Locke — A founder of the social contract tradition Rawls revived, emphasizing natural rights and consent.
• Jean-Jacques Rousseau — Anticipated the link between legitimate principles and the will of equal citizens.
• Jeremy Bentham — Represents the utilitarian framework Rawls built justice as fairness to oppose.
• John Stuart Mill — Refined the utilitarianism that serves as the theory's principal rival.

Related Books

• A Theory of Justice — The 1971 work that sets out the original position, the two principles, and the difference principle.

Related Quotes

• Rawls on the veil of ignorance — Specifies that no one behind the veil knows their place, class, or natural abilities — the ignorance that makes the original position fair.
• Rawls on justice as fairness — "Justice is the first virtue of social institutions, as truth is of systems of thought." The opening of A Theory of Justice announces the priority the theory gives to justice.

Related Topics

• The good life — Justice as fairness designs institutions that secure for every citizen the conditions under which a good life can be pursued.
• Philosophy of life — The theory addresses the most basic question of how a society should be arranged to be fair to every way of life.

Further Learning

• See What is the veil of ignorance? for the thought experiment at the heart of the original position.
• See What is social contract theory? for the tradition Rawls revived.
• See What is utilitarianism? for the framework justice as fairness is built to replace.
• Explore the concepts of justice, rights, freedom, and autonomy that the two principles protect.

Sources

1. "Rawls." Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/entries/rawls/
2. "John Rawls." Internet Encyclopedia of Philosophy. https://iep.utm.edu/rawls/
3. "Distributive Justice." Stanford Encyclopedia of Philosophy. https://plato.stanford.edu/entries/justice-distributive/
4. Rawls, John. A Theory of Justice (1971). Revised edition. Cambridge, MA: Harvard University Press, 1999.
5. Rawls, John. Political Liberalism. New York: Columbia University Press, 1993.
6. Kymlicka, Will. Contemporary Political Philosophy, 2nd ed. Oxford: Oxford University Press, 2002.