Property is theft. — Pierre-Joseph Proudhon

Proudhon, Pierre-Joseph. Proudhon: What is Property?, edited and translated by Donald R. Kelley and Bonnie G. Smith. Cambridge University Press, 1994, preface.

Proudhon, Pierre-Joseph. Qu'est-ce que la propriété? Recherche sur le principe du droit et du gouvernement [What Is Property? Or, an Inquiry into the Principle of Right and Government]. Paris: 1840, preface.