Two new types of regime—communist and fascist—set out to mobilize the lower classes. Each promised a complete transformation of society. Vladimir Lenin’s Bolsheviks aimed to build communism in the remnants of the Russian Empire. The Nazis, under Adolf Hitler, planned an Aryan empire. On taking power, both forced the public to adopt an ideology distilled from the leader’s scribblings. Raymond Aron called these “secular religions.” Like traditional faiths, they stated truths not to be questioned, redirected attention from current hardship to a utopian future, and defined rituals that could sort
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