Thus, fascism adopted the economic aspect of liberalism but completely denied its philosophical principles and the intellectual and moral heritage of… - Zeev Sternhell

In the form that it emerged at the turn of the century and developed in the 1920s and 1930s, the fascist ideology represented a synthesis of organic nationalism with the antimaterialist revision of Marxism. It expressed a revolutionary aspiration based on a rejection of individualism, whether liberal or Marxist, and it created the elements of a new and original political culture.

Like all self-respecting revolutionaries, Mussolini considered himself a Marxist. He regarded Marx as the ‘greatest theoretician of socialism’ and Marxism as the ‘scientific doctrine of class revolution.’

Thus, it was quite natural that a synthesis would arise between this new socialism [fascism], which discovered the nation as a revolutionary agent, and the nationalist movement, which also rebelled against the old world of conservatives, against the aristocrats and the bourgeois, and against social injustices and which believed that the nation would never be complete until it had integrated the proletariat. A socialism for the whole collectivity and a nationalism that, severed from conservatism, proclaimed itself as being by definition the messenger of unity and unanimity thus came together to form an unprecedented weapon of war against the bourgeois order and liberal democracy.