From Robert Avrech:
Yes, we eager students studied history, literature and art. But soon enough it became clear to me that a massive amount of time was spent on Marxist theory, a material view of the world. Still observant, still wearing a yarmulke, I would ask about religion, about the spirit. With deep condescension, my professors informed me that we live in a post-religious world. Religion, I was lectured, was the opiate of the people.
I wondered, but never had the courage to suggest, that perhaps Marxism was the opiate of the elites.