“Despite the massive intellectual feat that Marx's Capital represents, the Marxian contribution to economics can be readily summarized as virtually zero. Professional economics as it exists today reflects no indication that Karl Marx ever existed. This neither denies nor denigrates Capital as an intellectual achievement, and perhaps in its way the culmination of classical economics. But the development of modern economics had simply ignored Marx. Even economists who are Marxists typically utilize a set of analytical tools to which Marx contributed nothing, and have recourse to Marx only for ideological, political, or historical purposes.

In professional economics, Capital was a detour into a blind alley, however historic it may be as the centerpiece of a worldwide political movement. What is said and done in its name is said and done largely by people who have never read through it, much less followed its labyrinthine reasoning from its arbitrary postulates to its empirically false conclusions. Instead, the massive volumes of Capital have become a quasi-magic touchstone—a source of assurance that somewhere and somehow a genius "proved" capitalism to be wrong and doomed, even if the specifics of this proof are unknown to those who take their certitude from it.”
― Thomas Sowell, Marxism: Philosophy and Economics

“The Marxist constituency has remained as narrow as the conception behind it. The Communist Manifesto, written by two bright and articulate young men without responsibility even for their own livelihoods—much less for the social consequences of their vision—has had a special appeal for successive generations of the same kinds of people. The offspring of privilege have dominated the leadership of Marxist movements from the days of Marx and Engels through Lenin, Mao, Castro, Ho Chi Minh, and their lesser counterparts around the world and down through history. The sheer reiteration of the "working class" theme in Marxism has drowned out this plain fact.”
― Thomas Sowell, Marxism: Philosophy and Economics

“In Ogunquit,” she said, “he was the most insufferable kid you could imagine. A lot of it was compensation for his family situation, I guess… to them it must have seemed like he had hatched from a cowbird egg or something… but after the flu, he seemed to change. At least to me, he did. He seemed to be trying to be, well… a man. Then he changed again. Like all at once. He started to smile all the time. You couldn’t really talk to him anymore. He was… in himself. The way people get when they convert to religion or read—” She stopped suddenly, and her eyes took on a momentary startled look that seemed very like fear.
“Read what?” Stu asked.
“Something that changes their lives,” she said. “Das Kapital. Mein Kampf. Or maybe just intercepted love letters.”
― Stephen King, The Stand