(Q1261494)
Statements
1 reference
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. (American English)
12 February 2002
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Wikipedia(12 entries)
- dawiki Ukendte ukendte
- dewiki There are known knowns
- enwiki There are unknown unknowns
- etwiki There are unknown unknowns
- frwiki There are known knowns
- idwiki There are known knowns
- jawiki 知られていると知られていることがある
- kowiki 알려지지 않은 미지의 것들이 있다
- nowiki Ukjente ukjente
- uzwiki There are known knowns
- zh_classicalwiki 不知之不知
- zhwiki 不知之不知