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UNCERTAINTY
[ Also see Anxiety Apprehension Certainty Distrust Doubt Expectation Indecision Irresolution Knowledge Mutability Mystery Questions Suspense Suspicion Unbelief Unknown Wonder Worry ]

Unpredictability, too, can become monotonous.
      - Eric Hoffer

Who knows whether the gods will add tomorrow to the present hour?
  [Lat., Quis scit, an adjiciant hodiernae crastina summae
    Tempora di superi?]
      - Horace (Quintus Horatius Flaccus), Carmina
         (IV, 7, 17)

All human things hang on a slender thread, the strongest fall with a sudden crash.
  [Lat., Omnia sunt hominum tenui pendentia filo:
    Et subito casu, quae valuere, ruunt.]
      - Ovid (Publius Ovidius Naso),
        Epistoloe Ex Ponto (IV, 3, 35)

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 one we don't know we don't know.
      - Donald Rumsfeld

My thought, whose murder yet is but fantastical,
  Shakes so my single state of man that function
    Is smothered in surmise and nothing is
      But what is not.
      - William Shakespeare, Macbeth
         (Macbeth at I, iii)

This
  I ever held worse that all certitude,
    To know not what the worst ahead might be.
      - Algernon Charles Swinburne, Marino Faliero
         (act V)

When the mind is in a state of uncertainty the smallest impulse directs it to either side.
  [Lat., Dum in dubio est animus, paulo momento huc illuc impellitur.]
      - Terence (Publius Terentius Afer), Andria
         (I, 5, 32)

Last Revised: 2007 January 1
Copyright © 1999-2007 John C. Shepard. All Rights Reserved.
The GIGA name and logo are trademarks registered in the U.S. Patent and Trademark Office by John C. Shepard.
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