“Every managerial act rests on assumptions, generalizations, and hypotheses — that is to say, on theory. Our assumptions are frequently implicit, sometimes quite unconscious, often conflicting; nevertheless, they determine our predictions that if we do a, b will occur. Theory and practice are inseparable.”

Source: The Human Side of Enterprise (1960), p. 6 (2006; 8)

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Douglas McGregor 22
American professor 1906–1964

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