Marx once declared that philosophers have only interpreted the world, but the point is to change it. Demarcation and Demystification examines the ways in which a radical practice of philosophy is possible under the aegis of Marx's 11th thesis, arguing that philosophy's radicality is discovered by understanding that it can only ever interpret the world; that social transformation lies beyond the sphere of its operations. 'Demarcation and Demystification is a major statement on the gulf between what philosophers actually do, and what they think they do.' Matthew R. McLennan, author of Philosophy and Vulnerability