I'll be very quick.
I think you're referring to his final book, Capitalism, Socialism and Democracy, but that was a cultural interpretation. He said that capitalism is the most efficient form of all. It will be destroyed because of what he called “the sociology of the intellectual”—people like me. Well, it's not me literally, but it's that intellectuals don't like markets. We don't like business. We don't like competition.
All you have to do is listen to any professor on CBC, CTV or Global. About 98% of them will verify that. We have this hostility, this deep philosophical opposition. For those who say I'm wrong, please read “The Sociology of the Intellectual”. It's in chapter XIII in Capitalism, Socialism and Democracy. It's the most brilliant exposition ever of how and why intellectuals think the way they do.