A 1994 translation of one of the most notorious and influential critiques of private property ownership.Written by a contemporary of Marx and one of the most influential subversive critics of modern European society, this work (1840) has become a classic of political thought through its critique of private property as the essential institution of Western culture as well as the root of its problems.Written by a contemporary of Marx and one of the most influential subversive critics of modern European society, this work (1840) has become a classic of political thought through its critique of private property as the essential institution of Western culture as well as the root of its problems.This is a new translation of one of the classics of the traditions of anarchism and socialism. Pierre-Joseph Proudhon was a contemporary of Marx and one of the most acute, influential, and subversive critics of modern French and European society. What is Property? (1840) has become a classic of political thought through its wide-ranging and deep-reaching critique of private property as at once the essential institution of Western culture and the root cause of greed, corruption, political tyranny, social division, and violation of natural law.1. Method followed in this work; 2. Property considered as a natural right; 3. Labor as the efficient cause of the domain of property; 4. That property is impossible: demonstration; 5. Psychological exposition of the idea of the just and the unjust and the determination of the principle of government and right.