Saturday, June 26, 2010

The hallmark of an intelligent person - Knowing what you don’t know

Explanation: here


At 8:37 PM EDT, Blogger EscapeVelocity said...

"There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we now know we don’t know. But there are also unknown unknowns. These are things we do not know we don’t know."

—United States Secretary of Defense Donald Rumsfeld


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