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Uncertainty quotes and quotations

Not to be absolutely certain is, I think, one of the essential things in rationality.
Bertrand Russell

An image is a stop the mind makes between uncertainties.
Djuna Barnes

We demand guaranteed rigidly defined areas of doubt and uncertainty.
Douglas Adams

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.
Chinese Proverb

There is no such uncertainty as a sure thing.
Robert Burns

This I ever held worse that all certitude, To know not what the worst ahead might be.
Algernon Charles Swinburne

When the mind is in a state of uncertainty the smallest impulse directs it to either side.

When one admits that nothing is certain one must, I think, also admit that some things are much more nearly certain than others.
Bertrand Russell

Doubt is not a pleasant condition, but certainty is absurd.

Who knows whether the gods will add tomorrow to the present hour?

All human things hang on a slender thread, the strongest fall with a sudden crash.

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

Uncertainty and expectation are the joys of life. Security is an insipid thing, through the overtaking and possessing of a wish discovers the folly of the chase.
William Congreve

The only thing that makes life possible is permanent, intolerable uncertainty; not knowing what comes next.
Ursula K. LeGuin

Maturity of mind is the capacity to endure uncertainty.
John Finley

Uncertainty and mystery are energies of life. Don't let them scare you unduly, for they keep boredom at bay and spark creativity.
R. I. Fitzhenry

I believe that uncertainty is really my spirit's way of whispering, "I'm in flux. I can't decide for you. Something is off-balance here."
Oprah Winfrey

In these matters the only certainty is that nothing is certain.
Pliny the Elder

Knowledge is an unending adventure at the edge of uncertainty.
Jacob Bronowski