Rawls' Theory of Justice Explained: A Philosophical Introduction

Michael Sandel's central critique of liberal theory is the concept of the 'unencumbered self' - the idea that individuals can exist as free, autonomous beings independent of their social attachments. Sandel argues this is unrealistic because we are born into specific families, cultures, and communities that shape our identities and values. He proposes the 'encumbered self' - individuals are fundamentally shaped by their particular attachments to families, communities, and traditions. The example of a rich person and a poor person illustrates that justice should take particular circumstances into account rather than treating everyone as abstractly equal.

Michael J. Sandel argues that liberalism's vision of justice, particularly John Rawls' theory of justice as fairness, fails because it treats individuals as unencumbered selves who can choose principles of justice impartially, neglecting the fact that human identity is fundamentally shaped by social relationships, historical contexts, and communal commitments; he contends that liberalism's insistence on neutrality and individual rights often undermines the shared moral understandings and community bonds necessary for genuine justice.

The liberal-communitarian debate arose from criticism of John Rawls' liberalism, which argued that principles of justice and fundamental rights should not depend on any particular conception of the good life or virtue, as this honors individual freedom. Critics argued this was impossible because we are encumbered beings defined by our communities, traditions, backgrounds, and cultural experiences—an important part of human agency. Some who were labeled communitarians were uncomfortable with the term because it suggested justice is merely relative to prevailing community values, which would deprive justice of its critical character. Others embraced the label to promote policies giving greater weight to community claims. The communitarian movement faded partly because some resisted the label for these reasons, though the underlying critique of strict neutrality in political philosophy remains influential.

Communitarians like Michael Sandel and Michael Walzer critique Western liberalism (particularly John Rawls' theory) for prioritizing abstract individual rights over the concrete goods and values embedded in community life; Sandel argues that liberalism's 'veil of ignorance' creates an unrealistic, isolated self that fails to account for how individuals are always already embedded in social contexts, while Walzer proposes 'complex equality' as an alternative to Rawls' simple equality, emphasizing that no single good should dominate over others in a just society.

Communitarianism is a philosophical movement that critiques liberal democracy by reviving collective consciousness in modern society. It operates in tension between modernity and conservatism, drawing from Aristotle, Aquinas, Hegel, and Tocqueville, contrasting with liberal foundations in Locke, Rousseau, and Kant. Four core critiques include: rejection of the 'unencumbered self' (humans are always born into communities), critique of social atomization and market dominance, the need to revitalize traditional values, and the importance of collective identity. Rawls' theory of justice prioritizes justice over the good, with two principles: equal basic liberties and the difference principle (inequalities must benefit the least advantaged). Sandel's critique asks what obligates citizens to share if they are atomistic individuals without community ties. Rawls' difference principle relies on the 'natural lottery' - talents are luck, not achievement, so they should only benefit the least advantaged. However, Sandel argues this is philosophically problematic because being a member of a particular community is itself a matter of luck. The dilemma is: either accept liberal individualism (making Rawls' principle unsustainable) or recognize ourselves as members of communities with collective consciousness that provides ethical basis for distribution.

Rawls' theory uses 'primary social goods' as the metric for justice—things any rational person would want regardless of their conception of the good life. Sen's powerful criticism is that this is fetishistic: it focuses on resources rather than what people can actually do and be with those resources. For example, equal resources to a legless person and someone with functioning legs don't achieve real equality since the legless person must spend income on mobility devices. Sen argues we should focus on 'capabilities'—what people are enabled to do and be, considering their personal traits and circumstances. Martha Nussbaum later suggested marrying capabilities to an objective list of what's genuinely good for people.

The capabilities approach focuses on what people are actually able to do and be, rather than just the resources they have. Amartya Sen's capabilities approach focuses on increasing people's overall capabilities to achieve what they value. He argues that justice should be evaluated based on what people are actually able to do and be, not just on resources they possess. Sen argues that capabilities are closely linked to political freedom—when people lack capabilities (such as freedom from famine), it is often due to inadequate political systems rather than lack of resources. Martha Nussbaum proposes a capabilities approach that identifies ten central capabilities that should be guaranteed to all citizens. She argues that these capabilities are non-compensable—meaning that if one capability is lacking, it cannot be compensated by having more of another.

Amartya Sen's capabilities approach differs from Rawls' primary goods approach by focusing on what people can actually do and be, rather than what resources they possess. The capabilities approach recognizes that different people need different resources to achieve the same functionings. This approach avoids the paternalism of needs-based approaches and the static nature of resource-based approaches. It emphasizes the importance of individual agency and the ability to convert resources into valuable functionings.

Martha Nussbaum critiques Rawls' theory for requiring conditions that cannot be met by all people, such as being in the same time period, having similar mental and physical capacities, and seeking mutual benefit. She develops the capability approach as an alternative, incorporated into the United Nations Development Programme's Human Development Reports since 1990. This approach measures progress by education, health, and other dimensions rather than solely by GDP per capita. Nussbaum describes this as bringing ethical philosophy to economic development, moving from purely material connotation to ethical dimension recognizing human dignity. The capability approach represents a 'Tazhir' of the concept of Tazkiyah (purification), which involves transforming human consciousness from material concerns to spiritual and ethical concerns. She distinguishes three types of capabilities: basic capabilities (natural endowments), internal capabilities (acquired through social interaction), and composite capabilities (combination of internal capabilities and external conditions). The central question is 'What is a person able to do and be?' This question is asked by people in all walks of life, even those not educated, and does not require philosophical training.

The capabilities approach, developed by economists Amartya Sen and philosopher Martha Nussbaum, challenges traditional GDP-centric measures of development by focusing on what people are actually able to do and be in their lives—substantial freedoms and meaningful choices across key life domains such as health, education, bodily integrity, and political participation—rather than merely measuring economic output or aggregate wealth.

Rawls' later work, 'Political Liberalism' (1993), represented a significant development in his theory of justice. In this work, Rawls addressed the challenge of how a just society could be organized in the face of reasonable pluralism - the fact that people hold different and often incompatible conceptions of the good life. Rawls argued that a just society should be organized around a 'political conception of justice' that could be accepted by people holding different comprehensive doctrines. This work represented Rawls' attempt to extend his theory of justice beyond the specific context of liberal democratic societies to address the broader challenge of how different groups and individuals could live together in a just society.

In 'Political Liberalism' (1993), Rawls revises his earlier work by arguing that 'A Theory of Justice' presented liberalism as a comprehensive doctrine rather than merely a political conception of justice. Rawls argues this was an unrealistic requirement, as it would demand that people share liberal views of the good life. Political liberalism instead offers a conception of justice for the basic structure of society that can be accepted by people holding different comprehensive doctrines. Modern democratic societies are characterized by reasonable pluralism - a plurality of incompatible yet reasonable doctrines. Political liberalism must be impartial with respect to the viewpoints of reasonable comprehensive doctrines and find terms of social cooperation that can be accepted by citizens with fundamentally different worldviews. Rawls reformulates the central problem of political liberalism as follows: how is it possible for a stable and just society of free and equal citizens to exist over time when they are deeply divided by reasonable religious, philosophical, and moral doctrines?

Rawls develops political liberalism to address how societies can function when citizens hold deeply conflicting comprehensive doctrines about God, life, right and wrong, and good and bad. A comprehensive doctrine is a complete worldview providing all-encompassing explanations of what matters in life. Rawls argues that different people will reasonably arrive at different answers to ultimate questions—Christianity, atheism, Judaism, Buddhism, utilitarianism, and various ethical traditions are all equally reasonable comprehensive doctrines. This pluralism is an inescapable fact of human society, and the only way to maintain a single comprehensive doctrine throughout society is through oppressive state power, as illustrated by historical examples like the Inquisition. Therefore, Rawls proposes a political conception of justice that acknowledges reasonable disagreement while focusing on institutions respecting diverse comprehensive doctrines. This differs from his earlier metaphysical conception in Theory of Justice, which imagined free citizens behind a veil of ignorance deciding principles for all society. The political conception accepts that no single comprehensive doctrine can govern a free society, instead focusing on shared political principles that different worldviews can accept.

Rawls evolved from presenting a comprehensive moral theory in 1971 to developing 'Political Liberalism' in 1993. The earlier work grounded justice in a particular conception of the good life, while the later work sought a more modest political theory acceptable to people with diverse religious, philosophical, and moral beliefs. This shift represented an attempt to achieve greater political stability in pluralistic democratic societies by focusing on conditions of fair cooperation rather than ultimate ends. Rawls was actively engaged with civil disobedience and conscientious objection during the Vietnam War era, arguing that citizens have moral obligations to resist unjust laws. This evolution reflects ongoing tensions between comprehensive moral theories and the requirements of political stability in diverse societies.

John Rawls' 'Political Liberalism' (1993) represents a fundamental shift from his earlier 'Theory of Justice' (1971). While both establish 'justice as fairness,' the latter moves from abstract moral philosophy to concrete political application. Rawls distinguishes between moral theory (assuming citizens endorse principles from detachment) and political liberalism (addressing acceptance in actual democratic societies). Modern societies feature 'reasonable pluralism'—multiple incompatible comprehensive doctrines (religious, philosophical, moral) that cannot be reconciled. Rawls identifies this as the central problem: how can stable, just societies of free and equal citizens exist despite deep divisions? His solution is the 'overlapping consensus'—citizens support both their comprehensive doctrine and a shared political conception. Rawls traces this challenge to historical developments: the Protestant Reformation fragmented religious unity, creating rival salvationist religions; the modern state emerged with centralized power; and modern science developed. When authoritarian religion divides, it produces equally authoritarian rivals, creating the problem of coexistence. Some saw no basis for tolerance since accepting heresy about salvation was unacceptable. Others insisted on tolerance as a modus vivendi, viewing religious division as a disaster requiring acceptance rather than resolution. This historical context gave rise to freedom of conscience and thought as genuine values.

Rawls formulates justice principles through the 'original position' - a hypothetical scenario where individuals don't know their future social position, talents, or circumstances. In this position of ignorance, rational individuals would accept two principles: equal basic liberties and the difference principle. The difference principle permits inequalities only if they benefit the least advantaged and attach to positions open to all. For example, government subsidies for low-income workers are just because they benefit the least advantaged without harming the wealthy. This principle justifies progressive taxation and welfare state policies, establishing that natural endowments (talents, abilities) are morally arbitrary and should only benefit the least fortunate.

Rawls' Theory of Justice provides practical guidance for modern policy across multiple domains. In education, the Difference Principle and Fair Equality of Opportunity require equal access regardless of social background, supporting scholarships and public schools. In healthcare, universal systems ensure access for the least advantaged, implementing the Difference Principle. In taxation, progressive rates redistribute wealth to benefit the poor. Welfare policies like unemployment insurance and minimum wage laws protect the economically vulnerable. Rawls' framework also applies internationally, where supporting developing countries and addressing climate change (which disproportionately affects the poor) can be justified by benefiting the least advantaged globally. Despite challenges in identifying the least advantaged and applying principles to complex real-world situations, Rawls' theory provides essential philosophical foundations for addressing modern social issues.

Rawls' principle of difference (the 'difference principle') states that inequalities are acceptable only if they benefit the least advantaged members of society. This principle justifies progressive taxation and public funding of services like healthcare and education. The idea is that those who benefit from inequalities (through higher incomes) should contribute to society in ways that help those who are born into disadvantaged circumstances. This principle aims to compensate for natural and social inequalities that are beyond individual control.

The difference principle has two interpretations: Pareto efficiency (inequalities acceptable if they increase overall wealth) and the maximalist view requiring inequalities benefit the least advantaged through progressive taxation. Rawls identifies four models: natural liberty (formal equality + Pareto), aristocratic natural (formal equality + difference), liberal equality (material equality + Pareto), and democratic equality (material equality + difference). Rawls endorses the fourth model, requiring redistribution of both wealth and economic power to create a 'democracy of owners.'

Rawls' three-tiered framework establishes justice through sequential application. The Equal Liberty Principle guarantees fundamental freedoms (voting, speech, movement, legal protection) without controversy. The Equal Opportunity Principle permits income inequality from voluntary choices but condemns inequality arising from social constraints like family background. The Difference Principle allows social and economic inequalities only if they benefit the least advantaged. Rawls distinguishes between inequalities from individual choices (acceptable) versus those from social/natural circumstances (unacceptable). The framework requires progressive taxation to transfer resources from the wealthy to support disadvantaged groups, ensuring that those born into unfavorable positions still benefit from societal institutions.