Stephan Kinsella explores what makes libertarianism different from other political philosophies. Property, Rights, and Liberty Property in Bodies Self-ownership and Conflict-avoidance Property in External Things Consistency and Principle The article text is at http://mises.org/daily/3660. The text is adapted from a contribution to "Property, Freedom, and Society: Essays in Honor of Hans-Hermann Hoppe", a book published by the Ludwig von Mises Institute with a Creative Commons Attribution License 3.0. Read by Graham Wright.