When young, Claude Lefort, was a committed Trotskyist. However, in the mid 50’s he lost his faith in the communist and truly proletarian revolution, which was presumed to lead to a truly socialist society. By claiming Marxism was not a political philosophy, he proposed a new view on politics. The foundation of this new philosophy was the opposition of totalitarianism and democracy. What kind of society it is, totalitarian or democratic, is decided by looking at the authority. In totalitarianism the place of the authority is occupied by one particular person, or a particular group. In democracy, that place is empty. Nobody, or no group may take this place permanently. However, at the same time everyone has the right to it. So democracy as such has no solid foundations; its foundations are undefined and unstable. For Lefort, it is democracy that constitutes revolution, which makes members of the society constantly involved in politics, so as not to allow one person to take that empty place. A question then arises, does permanent revolution really determine a democratic society and protects against totalitarianism?