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" In essence our failure was a vivid demonstration, which I have never forgotten, that theories, however plausible and “obviously” valid, can be destroyed totally by the obstinate facts of the real world. Davis had brought us an unbeatable scheme for raising cattle profitably. The cattle had a different scheme. No doubt my later deep skepticism of the a priorism of mainstream economics had some of its origins in this experience. "

Herbert A. Simon , Models of My Life


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Herbert A. Simon quote : In essence our failure was a vivid demonstration, which I have never forgotten, that theories, however plausible and “obviously” valid, can be destroyed totally by the obstinate facts of the real world. Davis had brought us an unbeatable scheme for raising cattle profitably. The cattle had a different scheme. No doubt my later deep skepticism of the a priorism of mainstream economics had some of its origins in this experience.