We're all concerned about sustainable energy. If we could recycle waste heat to generate energy, we could use it for something useful.

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• John Locke

  Philosopher

  Sunday, Aug 29, 1632
  Tuesday, Oct 28, 1704

• Mother Teresa

  Saint

  Friday, Aug 26, 1910
  Friday, Sep 05, 1997

• Carl Sagan

  Astronomer

  Friday, Nov 09, 1934
  Friday, Dec 20, 1996

• Yogi Berra

  Baseball Manager

  Tuesday, May 12, 1925
  Tuesday, Sep 22, 2015

• Henry David Thoreau

  Author

  Saturday, Jul 12, 1817
  Tuesday, May 06, 1862

• Heraclitus

  Philosopher

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

• Ruth Bader Ginsburg

  Associate Justice Of The Supreme Court Of The United States

  Wednesday, Mar 15, 1933
  

• Michael Jordan

  Basketball Player

  Sunday, Feb 17, 1963
  

• Chanakya

  Teacher

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

• Carl Jung

  Psychiatrist

  Monday, Jul 26, 1875
  Tuesday, Jun 06, 1961

• Maya Angelou

  Author

  Wednesday, Apr 04, 1928
  Wednesday, May 28, 2014

• George Bernard Shaw

  Playwright

  Saturday, Jul 26, 1856
  Thursday, Nov 02, 1950

• Saint Augustine

  Saint

  Saturday, Nov 13, 0354
  Wednesday, Aug 28, 0430

• Bob Marley

  Singer

  Tuesday, Feb 06, 1945
  Monday, May 11, 1981

• Wayne Dyer

  Author

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