The misery of being exploited by capitalists is nothing compared to the misery of not being exploited at all. Economic Philosophy (1962)
Even if the crises that are looming up are overcome and a new run of prosperity lies ahead, deeper problems will still remain. Modern capitalism has no purpose except to keep the show going. Economic Heresies (1971)
Their attitude to Marx, as the leading critic of capitalism, is therefore much less cocksure than it used to be. In my belief, they have much to learn from him. An Essay on Marxian Economics (Second Edition) (1966)