There are known knowns, things we know that we know; and there are known unknowns, things that we know we don't know. But there are also unknown unknowns, things we do not know we don't know.

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About Donald Rumsfeld

Donald Rumsfeld was a 20th-century American politician and naval officer. Donald Henry Rumsfeld was an American politician, businessman, and naval officer who served as the 13th United States secretary of defense from 1975 to 1977 under President Gerald Ford, and again as the 21st secretary of defense from 2001 to 2006 under President George W. Bush. Read more on Wikipedia →

Themes

  • Imagination — The creative power of the mind and visionary thinking
  • Knowledge — The pursuit of learning, understanding, and intellectual growth

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