Chantal Mouffe is a Belgian political theorist. She holds a professorship at the University of Westminster in the United Kingdom. She is best known as co-author of Hegemony and Socialist Strategy with Ernesto Laclau. Their thoughts are usually described as post-Marxism as they were both politically active in the social and student movements of the 1960s including working class and new social movements (notably second-wave feminism in Mouffe's case). They rejected Marxist economic determinism and the notion of class struggle being the single crucial antagonism in society. Instead they urged for radical democracy of agonistic pluralism where all antagonisms could be expressed. In their opinion, ‘...there is no possibility of society without antagonism’; indeed, without the forces that articulate a vision of society, it could not exist.