Donald Rumsfeld is reputed to have said, "There are two sorts of don't knows; the don't knows we know we don't know, and the don't knows we don't know we don't know. The latter are probably the most dangerous." Does anyone know where and when he made this fascinating observation?

infiniti

The actual statement was made at the Department of Defense news briefing, February 12, 2002. "Reports that say that something hasn't happened are always interesting to me, because as we know, 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. And if one looks throughout the history of our country and other free countries, it is the latter category that tend to be the difficult ones." Jan 08 05, 9:10 AM

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"I cannot discover that anyone knows enough to say definitely what is and what is not possible," Henry Ford said these words but does anyone know where or when he said them? lyrics "dont know much about history, dont know much about biology" who sang this song please, 60s or 70s i think Who said 'o dont know if i believe in God or not.the essential thing is to put oneself in a frame of mind which is close to that prayer ' ? We all know, of course, that when a person dies flags are flown at half mast as a mark of respect etc. Does anyone know who, why, where, when etc this was done for the first time. 'Obvious' sources like Brewers have little useful to impart on the subject. Thank you?

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