--- title: "Martha Nussbaum in Ethics" description: "Martha Nussbaum’s ethics centers the capabilities approach, judging justice by what people can actually do and be, not just by rights or resources." canonical: "https://fiveable.me/ethics/key-terms/martha-nussbaum" type: "key-term" subject: "Ethics" unit: "Unit 11" --- # Martha Nussbaum in Ethics ## Definition Martha Nussbaum is an ethicist known for the capabilities approach, which says justice should be judged by what people are actually able to do and be, not just by income, rights, or resources. ## What It Is Martha Nussbaum is a modern philosopher in Ethics best known for the capabilities approach, a theory of justice that asks what people are truly able to do with their lives. Instead of treating justice as just equal money, equal rights on paper, or equal access in theory, she asks whether people can actually live with health, education, safety, choice, and dignity. That makes her work feel very different from theories that focus only on distribution. Two people can have the same legal rights or the same amount of aid, but if one is trapped by discrimination, disability barriers, poor health, or lack of schooling, their real freedom is not the same. Nussbaum’s view says morality has to look at lived ability, not just formal equality. In her version of the theory, there are central capabilities that every person should have enough opportunity to develop. These include bodily health, bodily integrity, practical reason, affiliation, imagination, and control over one’s environment. The point is not that everyone must use every capability in the same way, but that society should make sure each person has a real chance to flourish. This also connects to cultural diversity and ethical pluralism. Nussbaum argues that people can live good lives in different ways, so ethics should not force one single lifestyle on everyone. At the same time, she does not say every practice is acceptable just because it is traditional. If a custom blocks basic human capabilities, she thinks justice can criticize it. She also gives Ethics a very human-centered way to talk about policy. A law, school, or welfare program is not fully fair just because it sounds equal on paper. You have to ask whether it changes people’s actual lives in a meaningful way, especially for people who start with fewer opportunities. ## Why It Matters Martha Nussbaum matters in Ethics because she gives you a way to test whether a society is really fair, not just officially fair. Her work pushes you beyond simple resource counting. A government can distribute money or rights and still leave people unable to attend school, participate in public life, or make choices about their own bodies. That is why the capabilities approach shows up in debates about healthcare, disability access, gender justice, education, and global poverty. If you are analyzing a policy, Nussbaum’s framework asks a practical question: what can people actually do after the policy is in place? That is a stronger ethical test than asking only whether everyone got the same package. Her approach also gives a useful lens for ethical pluralism. In class discussion, you may compare cultures that value different family structures, work patterns, or ideas about the good life. Nussbaum helps you separate respect for difference from approval of harm. You can respect cultural variety while still arguing that certain basic capabilities, like bodily safety or practical reasoning, should be protected for everyone. For essays and short responses, she is often the philosopher you use when a prompt asks about justice, human dignity, or what society owes its members. She also pairs well with Rawls and Sen, because she moves the debate from abstract fairness to real human functioning. ## Connections ### Capabilities Approach This is the theory most closely associated with Nussbaum. It shifts the focus of justice from resources or happiness alone to what people are actually able to do and be. In Ethics, you use it to judge whether social arrangements give people real opportunities for flourishing, especially when formal equality does not match lived reality. ### [John Rawls](/ethics/key-terms/john-rawls) Rawls and Nussbaum both care about fairness, but they emphasize it differently. Rawls focuses on just institutions, equal basic liberties, and the distribution of primary goods, while Nussbaum asks whether people can actually convert those goods into functioning lives. They often appear together in discussions of distributive justice. ### Ethical Pluralism Nussbaum’s work fits ethical pluralism because she recognizes that people and cultures pursue the good life in different ways. She does not argue for one single cultural model. Instead, she tries to protect universal human capabilities while leaving room for different ways of living them out. ### [Amartya Sen](/ethics/key-terms/amartya-sen) Sen is the other major thinker linked to capability theory, and comparing him with Nussbaum is a common move. Both criticize narrow economic measures of welfare, but Nussbaum is more explicit about a list of central capabilities. That makes her version easier to apply in policy and ethics essays. ## On the AP Exam A short-answer question or essay prompt may ask you to evaluate a policy, a social inequality, or a definition of justice. That is where Nussbaum comes in: you would explain whether people have real capabilities, not just formal rights or equal resources. For example, if a community has schools but many children cannot attend because of poverty, disability barriers, or unsafe transport, Nussbaum would say the society has not secured genuine educational capability. In a comparison question, you can use her to contrast with Rawls, utilitarianism, or a resource-based view. In a case analysis, look for whether the scenario protects bodily health, practical reason, affiliation, and other central capabilities. If the prompt mentions cultural traditions, use Nussbaum to show the difference between respecting diversity and tolerating practices that block basic human flourishing. ## Martha Nussbaum vs Amartya Sen These two are often linked because both develop capability theory, but they are not identical. Sen presents the broader capability framework, while Nussbaum gives a more structured version with a clearer list of central capabilities. If a question asks for the philosopher with the ten-capability approach, that is Nussbaum. ## Key Takeaways - Martha Nussbaum is best known in Ethics for the capabilities approach, which measures justice by real human opportunities, not just by rights or resources. - Her theory asks whether people can actually do and be what a decent life requires, such as staying healthy, getting educated, and making meaningful choices. - She is useful when a prompt involves distributive justice, disability, poverty, gender equality, or public policy that looks fair on paper but fails in practice. - Nussbaum also matters in ethical pluralism because she respects cultural difference while still defending universal human dignity and basic capabilities. - If you are comparing philosophers, Nussbaum is often paired with Rawls or Sen because all three care about justice, but they define fairness in different ways. ## FAQs ### What is Martha Nussbaum in Ethics? Martha Nussbaum is an ethicist known for the capabilities approach to justice. She argues that a fair society should be judged by what people are actually able to do and be, not only by formal rights or equal resources. ### What is the capabilities approach? The capabilities approach says justice should protect the real opportunities people have to live flourishing lives. It looks at things like health, education, bodily integrity, practical reason, and participation in society, not just income or legal equality. ### How is Martha Nussbaum different from John Rawls? Both philosophers care about justice, but Rawls focuses more on fair institutions and the distribution of primary goods. Nussbaum focuses on whether people can actually convert what they have into real functioning and human flourishing. ### How do you use Nussbaum in an ethics essay? Use her when a prompt asks whether a policy or practice is truly fair. You can argue that a law is not just because it gives everyone the same rule if some people still cannot access health care, education, safety, or public life in a real way. ## Related Study Guides - [11.1 Theories of Justice and Fairness](/ethics/unit-11/theories-justice-fairness/study-guide/BOnRwBvmymE47F1o) - [13.1 Cultural Diversity and Ethical Pluralism](/ethics/unit-13/cultural-diversity-ethical-pluralism/study-guide/SCGegg0vyWyrRGKe) ## About This Document Canonical Fiveable pages are available as Markdown at the same path plus `.md`. - [llms.txt](https://fiveable.me/llms.txt): index of Fiveable's sections and URL patterns - [llms-full.txt](https://fiveable.me/llms-full.txt): complete subject and unit listing - [MCP server](https://fiveable.me/mcp): call Fiveable as tools instead of fetching pages (`https://fiveable.me/api/mcp`) - [MCP server for AP teachers](https://fiveable.me/mcp/teachers): a teacher's classes, assignments and AP-rubric grading (`https://fiveable.me/api/mcp/teacher`) ## Structured Data ```json {"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/ethics/key-terms/martha-nussbaum#resource","name":"Martha Nussbaum in Ethics","url":"https://fiveable.me/ethics/key-terms/martha-nussbaum","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/ethics/key-terms/martha-nussbaum#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-07-03T02:21:18.603Z","isPartOf":{"@type":"Collection","name":"Ethics Key Terms","url":"https://fiveable.me/ethics/key-terms"},"author":{"@type":"Organization","@id":"https://fiveable.me/editorial#content-team","name":"Fiveable Content Team","url":"https://fiveable.me/editorial","parentOrganization":{"@id":"https://fiveable.me/#organization"},"member":[{"@type":"Person","name":"Amanda DoAmaral","sameAs":["https://www.linkedin.com/in/adoamaral"]},{"@type":"Person","name":"Becky Bahr","sameAs":["https://www.linkedin.com/in/becky-bahr-b52743132"]}]},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/ethics/key-terms/martha-nussbaum#term","name":"Martha Nussbaum","description":"Martha Nussbaum is an ethicist known for the capabilities approach, which says justice should be judged by what people are actually able to do and be, not just by income, rights, or resources.","url":"https://fiveable.me/ethics/key-terms/martha-nussbaum","inDefinedTermSet":{"@type":"DefinedTermSet","name":"Ethics Key Terms","url":"https://fiveable.me/ethics/key-terms"}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is Martha Nussbaum in Ethics?","acceptedAnswer":{"@type":"Answer","text":"Martha Nussbaum is an ethicist known for the capabilities approach to justice. 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