Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle.
I don't think we should tell them what we're going to do in advance. Let them think. Worry. Wonder. Uncertainty is the most chilling thing of all.
We measure our days out in steps of uncertainty not turning to see how far we've come. And peer down the highway from here to eternity and reach out for love on the run.
Markets are constantly in a state of uncertainty and flux and money is make by discounting the obvious and betting on the unexpected.
If you don't think you want to go on a train and read the paper every day and work from nine to six at night, there was something about the uncertainty when I was younger which was very attractive.
The glorious uncertainty of the law was a thing well known and complained of, by all ignorant people, but all learned gentleman considered it as its greatest excellency.
There's a certain kind of scepticism that can't bear uncertainty.
Uncertainty is a sign of humility, and humility is just the ability or the willingness to learn.
Information is the resolution of uncertainty.
I never appreciated 'positive heroes' in literature. They are almost always cliches, copies of copies, until the model is exhausted. I prefer perplexity, doubt, uncertainty, not just because it provides a more 'productive' literary raw material, but because that is the way we humans really are.
The idea of the sacred is quite simply one of the most conservative notions in any culture, because it seeks to turn other ideas - uncertainty, progress, change - into crimes.
The problem here is that there will always be some uncertainty about how quickly Saddam can acquire nuclear weapons. But we don't want the smoking gun to be a mushroom cloud.
If we must not act save on a certainty, we ought not to act on religion, for it is not certain. But how many things we do on an uncertainty, sea voyages, battles!
We sail within a vast sphere, ever drifting in uncertainty, driven from end to end.
Medicine is a science of uncertainty and an art of probability.