Mature psychological health cannot exist unless we are capable of doubting any form of conceptual certitude about ourselves or anything else.

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• Mahatma Gandhi

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• Walt Whitman

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• Vincent Van Gogh

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• Barack Obama

  44Th U.s. President

  Friday, Aug 04, 1961
  

• Abraham Lincoln

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• Rodney Dangerfield

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• Zig Ziglar

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• Ralph Waldo Emerson

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• George Carlin

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• Stephen Covey

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  Monday, Oct 24, 1932
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