Radicalism and the Revolt Against Reason is a work that continues to have a steady and large scale impact on political and social theory fifty years since its first appearance. A study of how radical thought modifies its actions and ideologies in a time of unrealized and frustrated expectations, the focus is on Georges Sorel and the Europe of the fin de sie cle, a time when socialist revolution was forcefully set aside by liberal reform. In a technique that presaged contemporary period, radical demands did not simply dissolve or disappear, they profoundly changed emphasis f