Sources

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2

3

http://www.nndb.com/people/339/000086081/

http://www.pbs.org/wgbh/americanexperience/features/biog
raphy/rockefellers-john/

"If you want to succeed you should strike out on new paths, rather than travel the worn paths of accepted success." J.D Rockefeller

http://www.spartacus.schoolnet.co.uk/
USArockefeller.htm#source

(Primary source)