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" The contemporary progressive mantra considers it laudable to argue that different races, cultures, or religions possess distinct ways of knowing. However, not too long ago, the idea that people of different races or classes possessed distinct ways of thinking and reasoning, was reserved for racists and other miscreants. Ludwig von Mises, a leading figure of the Austrian School of Economics and a staunch defender of classical liberalism, coined the term polylogism to capture this exact folly. Mises differentiated between Marxian polylogism and racial polylogism. In the former case, an individual’s method of thinking was determined by his social class while in the latter case, race was the guiding factor. Mises was well aware of the illogical nature of this premise when he remarked: “A consistent supporter of polylogism would have to maintain that ideas are correct because their author is a member of the right class, nation, or race. But consistency is not one of their virtues. Thus the Marxians are prepared to assign the epithet ‘proletarian thinker’ to everybody whose doctrines they approve. "
― Gad Saad , The Parasitic Mind: How Infectious Ideas Are Killing Common Sense