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Tuesday, September 25, 2012

Known unknowns



"There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know." —Former United States Secretary of Defense Donald Rumsfeld.

Aka- Rummy.


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