Quote by Rumsfeld....
Nuggets of wisdom come forth.....
".....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......"
Donald H. Rumsfeld (US Secretary of Defense (1932 - Present) ), Department of Defense news briefing, February 12, 2002
".....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......"
Donald H. Rumsfeld (US Secretary of Defense (1932 - Present) ), Department of Defense news briefing, February 12, 2002