Dark matter and dark energy are two things we measure in the universe that are making things happen, and we have no idea what the cause is.

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• Jean De La Bruyere

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• Maya Angelou

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• William Blake

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• Oprah Winfrey

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• Billy Graham

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  Thursday, Nov 07, 1918
  

• Napoleon Hill

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  Sunday, Nov 08, 1970

• Martin Luther King, Jr.

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  Tuesday, Jan 15, 1929
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• Henry David Thoreau

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  Saturday, Jul 12, 1817
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• Groucho Marx

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• Benjamin Franklin

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• Carl Jung

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• Thomas Sowell

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• Leonardo Da Vinci

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  Thursday, Apr 15, 1452
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