The purpose of science is not to analyze or describe but to make useful models of the world. A model is useful if it allows us to get use out of it.

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• H. L. Mencken

  Journalist

  Sunday, Sep 12, 1880
  Sunday, Jan 29, 1956

• W. Edwards Deming

  Statistician

  Sunday, Oct 14, 1900
  Monday, Dec 20, 1993

• Barack Obama

  44Th U.s. President

  Friday, Aug 04, 1961
  

• Marcus Tullius Cicero

  Philosopher

  
  

• Billy Graham

  Professional Wrestler

  Monday, Jun 07, 1943
  

• John C. Maxwell

  Author

  Thursday, Feb 20, 1947
  

• Voltaire

  Writer

  Sunday, Nov 21, 1694
  Saturday, May 30, 1778

• Ruth Bader Ginsburg

  Associate Justice Of The Supreme Court Of The United States

  Wednesday, Mar 15, 1933
  

• Elon Musk

  Investor

  Monday, Jun 28, 1971
  

• Niccolo Machiavelli

  Historian

  Monday, May 03, 1469
  Tuesday, Jun 21, 1527

• Ralph Waldo Emerson

  Essayist

  Wednesday, May 25, 1803
  Thursday, Apr 27, 1882

• Heraclitus

  Philosopher

  Thursday, Jan 01, 1970
  Thursday, Jan 01, 1970

• Dalai Lama

  Saturday, Jul 06, 1935
  

• Peter Drucker

  Author

  Friday, Nov 19, 1909
  Friday, Nov 11, 2005

• Wayne Dyer

  Author

  Friday, May 10, 1940
  Saturday, Aug 29, 2015