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12 hours, 24 minutes first pub 2002 (editions) not a book user-added

nonfiction philosophy science challenging informative reflective medium-paced
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12 hours, 24 minutes first pub 2002 (editions)

nonfiction philosophy science challenging informative reflective medium-paced

6 pages first pub 2002 (editions)

nonfiction philosophy science challenging informative reflective medium-paced