“Marxism is the opium of the intellectuals.”

“[Mussolini] was not a theoretician but a tactician, whose intellectual eclecticism, a blend of anarchism and Marxism, as well as his emphasis on violence, resembled the ideology of the Russian Socialists-Revolutionaries.”

“Those seeking to work out the relationship between Marxism and psychoanalysis have not been immune to the intellectual division of labor that severs the life nerve of dialectical thought.”

“All totalitarianism of the twentieth century were predicated on a systematic, anti-individualistic collectivism. In the case of Marxist-Leninism, the source was classical Marxism. [Giovanni] Gentile had carefully dissected the neo-Hegelian roots of that collectivism. What he found missing in the collectivism of Marx was ethical concern. He sought to provide that concern to the collectivism of Fascism—a collectivism that shared a common intellectual origin with Marxism and Marxism-Leninism.”

“Here's your first problem," he said, pointing at a sentence. "'Religion is the opium of the people.' Well, I don't know about people, but I think you'll find that the opium of pirates is actual opium.”

“Religion is the opium of the poor”

“Charity… is the opium of the privileged.”

“Optimism is the opium of the people.”

“Reinhold Niebuhr's new orthodoxy is the oldtime religion put through the intellectual wringer. It is a re-examination of orthodoxy for an age dominated by such trends as rationalism, liberalism, Marxism, fascism, idealism and the idea of progress.”

“Religion is not merely the opium of the masses, it's the cyanide.”