“"Normal science" means research firmly based upon one or more past scientific achievements, achievements that some particular scientific community acknowledges for a time as supplying the foundation for its further practice”

—  Thomas Kuhn, book The Structure of Scientific Revolutions

Source: The Structure of Scientific Revolutions (1962), II. The Route to Normal Science, p. 10

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Thomas Kuhn27
American historian, physicist and philosopher 1922–1996

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