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1 hour, 5 minutes first pub 1974 (editions) user-added

nonfiction philosophy psychology science challenging informative reflective slow-paced
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15 pages first pub 1974 (editions)

nonfiction philosophy psychology science challenging informative reflective slow-paced

17 pages first pub 1974 (editions) not a book user-added

nonfiction philosophy psychology science challenging informative reflective slow-paced