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100,585 results
Sigmund Freud: Id, Ego & Superego. One of the most enduring and important ideas of Sigmund Freud was that the human mind ...
326,340 views
3 years ago
James Gleick, who wrote a biography of Isaac Newton, describes the reclusive scientist as "antisocial, unpleasant and bitter.
3,438,815 views
10 years ago