“Some writers maintain arithmetic to be only the only sure guide in political economy; for my part, I see so many detestable systems built upon arithmetical statements, that I am rather inclined to regard that science as the instrument of national calamity.”

— Jean-Baptiste Say

Source: A Treatise On Political Economy (Fourth Edition) (1832), Book I, On Production, Chapter XVII, Section III, p. 188

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Jean-Baptiste Say 72

French economist and businessman 1767–1832

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