Unknown Unknowns Quotes

#1. When you start talking about the known knowns and the unknown unknowns, you're thrown into a crazy meta-level discussion. Do I know what I know, do I know what I don't know, do I know what I don't know I don't know. It becomes a strange, Lewis Carroll - like nursery rhyme.

Errol Morris

#2. 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 know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.

Donald Rumsfeld

#3. There are known knowns, things we know that we know; and there are known unknowns, things that we know we don't know. But there are also unknown unknowns, things we do not know we don't know.

Donald Rumsfeld

#4. The glamour's off. Almost any question you ask can be answered. It's only the questions that you didn't know to ask that remain, dancing the can-can behind your back. The unknown unknowns.

Mark Forsyth

#5. There are things we know we know. . . . 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 Rumsfeld

Steven J. Wangsness

#6. There's always the risk that there are unknown unknowns.

Nate Silver

#7. There are known knowns and known unknowns, but what we should be worried about most is the unknown unknowns.

Gary Marcus

#8. The two Great Unknowns, the two Illustrious Conjecturabilities! They are the best known unknown persons that have ever drawn breath upon the planet.

Mark Twain

#9. Life is a walk through the forest. Don't fear the trees, fear what lurks behind them.

Richelle E. Goodrich

#10. Words have meaning beyond the obvious. Words have consequences beyond intentions. Civil words align risk and reward of such unknowns.

John R. Dallas Jr.

#11. A sense of the unknown has always lured mankind and the greatest of the unknowns of today is outer space. The terrors, the joys and the sense of accomplishment are epitomized in the space program.

William Shatner

#12. Of course there are unknowns. And the sooner Aurore begins to meet them, the sooner they will cease to be unknown. That is the point.

Cameron Dokey

#13. Always, just beyond all these things, was the silver sea, the lace border around all land like the silence around sounds or the unknowns beyond all knowledge.

Rebecca Solnit