DESPITE HIS STATUS AS A FOUNDER OF MODERN SOCIAL SCIENCE, Pareto receives little scholarly attention. In particular, his penetrating discussion of ‘demagogic plutocracy’ (his term for the liberal state) has been strangely ignored by analysts of Western, or ‘bourgeois’, democracy. While Marx's scattered and inconsistent remarks on ‘the capitalist state’ have spawned a vast literature, Pareto is lucky to be acknowledged in a footnote. Consider the exemplary case of David Held, a theorist of great repute, who managed to write a 321 page textbook called Models of Democracy without once mentioning Pareto's name. Why has Pareto been ‘put in quarantine’? One reason is surely the irritating nature of his master-work, Treatise of General Sociology (published in 1916). Even his admirers describe this work as ‘monstrous’ – disorganized, unnecessarily long, full of pedantic distinctions, and continually interrupted by digressions, and by digressions within digression. He never missed an opportunity to break the thread of exposition in order to pursue some bright idea or display his arcane erudition. But a fuller explanation of Pareto's ‘quarantine’ requires us to look at the social psychology of intellectuals.