
What Is Property? (Qu’est-ce que la propriété?, 1840) is Pierre-Joseph Proudhon’s groundbreaking work of political philosophy, the text that launched anarchism as a political movement. The famous opening question receives an equally famous answer: "Property is theft!" Proudhon systematically argues that private ownership of productive property—land, factories, tools—allows owners to extract profit from workers’ labor without contributing equivalent value, constituting a form of theft. He distinguishes between personal possessions (which he supports) and productive property used to exploit others (which he opposes). In place of both capitalism and state socialism, Proudhon proposes mutualism: a decentralized system of reciprocal exchange among independent producers and workers’ cooperatives. The work also contains Proudhon’s famous self-identification as an "anarchist"—the first use of the term as a positive political identity. Written with polemical vigor and analytical rigor, What Is Property? remains one of the most important and provocative works of political philosophy.
The theme of property as theft weaves through What Is Property?, adding depth to its narrative.
The presence of anarchist manifesto in What Is Property? connects readers to its enduring relevance.
What Is Property? thoughtfully explores economic exploitation through its central conflicts.
The presence of mutualism in What Is Property? connects readers to its enduring relevance.
What Is Property? launched one of the most influential political philosophies of the modern era. Its arguments about economic exploitation, workers’ rights, and alternatives to both capitalism and state control remain central to contemporary debates about economic justice.
Proudhon argues that private ownership of productive property is theft because it allows exploitation of labor, and proposes mutualism as an alternative to both capitalism and state socialism. Read it free on TextStack.
Not chaos, but a society organized through voluntary cooperation and mutual exchange rather than coercive government or capitalist exploitation—a positive political philosophy of freedom.
Proudhon writes with vigor and clarity, though some economic arguments require careful attention. The central ideas are powerfully stated and accessible to any thoughtful reader.
Both critiqued capitalism, but Proudhon opposed state control and centralized authority, advocating decentralized cooperatives—leading to a famous intellectual rivalry with Marx.