motivation: Media
behavior
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Aristotle
Aristotle, marble portrait bust, Roman copy (2nd century bce)...
© A. Dagli Orti—De Agostini/Getty Images
John Locke
The philosopher John Locke, oil on canvas by Herman Verelst, 1689; in the National...
Universal History Archive/Universal Images Group/REX/Shutterstock.com
Galvani, Luigi
Luigi Galvani in an illustration from Le Journal de la Jeunesse, Paris,...
© Photos.com/Thinkstock
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