Although the broadest definitions of fascism may include every authoritarian state that has ever existed, most theorists see important distinctions to be made. Fascism in Italy arose in the 1920s as a mixture of syndicalist notions with an anti-materialist theory of the state; the latter had already been linked to an extreme nationalism. Fascism in many ways seems to have been clearly developed as a reaction against Communism and Marxism, both in a philosophic and political sense, although it opposed democratic capitalist economics along with socialism, Marxism, and liberal democracy. It viewed the state as an organic entity in a positive light rather than as an institution designed to protect collective and individual rights, or as one that should be held in check. It tended to reject the Marxist notion of social classes (and universally dismissed the concept of class conflict), replacing it instead with two more nebulous struggles: conflict between races and the struggle of the youth versus their elders. This meant embracing nationalism and mysticism, and advancing ideas of strength and power as means of legitimacy, a might makes right that glorified war as an end in itself and determinant of truth and worthiness. An affinity to these ideas can be found in Social Darwinism. These ideas are in direct opposition to the ideas reason or rationalism characteristic of the Age of Enlightenment, from which liberalism and, later, Marxism would emerge.
Fascism is also typified by totalitarian attempts to impose state control over all aspects of life: political, social, cultural, and economic. The fascist state regulates and controls (as opposed to nationalizing) the means of production. Fascism exalts the nation, state, or race as superior to the individuals, institutions, or groups composing it. Fascism uses explicit populist rhetoric; calls for a heroic mass effort to restore past greatness; and demands loyalty to a single leader, often to the point of a cult of personality.