"For Aristotelian physics the membership of an object in a given class was of critical importance, because for Aristotle the class defined the essence or essential nature of the object, and thus determined its behavior in both positive and negative respects."
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Jews from the United StatesImmigrants to the United StatesJews from GermanyPsychologists from GermanySystems scientists
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Kurt Lewin
1890 – 1947
deutsch-amerikanischer Psychologe
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