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.

spiros

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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 tends to be the difficult ones.

Υπάρχουν πράγματα που γνωρίζουμε πως γνωρίζουμε. Υπάρχουν γνωστά άγνωστα. Αυτό σημαίνει πως υπάρχουν πράγματα που γνωρίζουμε ότι δεν γνωρίζουμε. Αλλά υπάρχουν επίσης και τα άγνωστα άγνωστα. Υπάρχουν πράγματα που δεν γνωρίζουμε πως δεν τα γνωρίζουμε.

Ντόναλντ Ράμσφελντ



 

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