Uncertainty that comes from knowledge (knowing what you don't know) is different from uncertainty coming from ignorance. — Isaac Asimov Copy Share Image
People are less certain of their national identities or their place in the world. It starts looking different and disorienting. And there… — Barack Obama Copy Share Image
I have absolutely no doubt at all that we will find evidence of weapons of mass destruction programmes. — Tony Blair Copy Share Image
Obama, he wouldn't have been in office without what happened to me and a lot of black people before me. He would… — Rodney King Copy Share Image
Every great thing starts with an idea, followed by a doubt and finally a resolve to abandon or pursue. Victory is a… — Dane Cook Copy Share Image
And better had they ne'er been born, Who read to doubt, or read to scorn. — Walter Scott Copy Share Image
“Scepticism is as much the result of knowledge, as knowledge is of scepticism. To be content with what we at present know,… — Homer Copy Share Image
Thoughts of doubt and fear are pathways to failure. When you conquer negative attitudes of doubt and fear you conquer failure. — Bryan Adams Copy Share Image
Ambiguity is necessary in some of my stories, not in all. In those, it certainly contributes to the richness of the story.… — Gene Wolfe Copy Share Image
The major parties could conduct live human sacrifices on their podiums during prime time, and I doubt that anybody would notice. — Dave Barry Copy Share Image
Conceit is a sure sign of insecurity; humility denotes awareness. — Sivaya Subramuniyaswami Copy Share Image
[I]f in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations… — Roger Bacon Copy Share Image
I've never had a moment's doubt. I love you. I believe in you completely. You are my dearest one. My reason for… — Ian Mcewan Copy Share Image
“David Hume, in a moment of acute skepticism, felt panicky in the solitude of his study and had to go out and… — William Barrett Copy Share Image
It's surreal to be hanging out on Ozzy's patio with him talking politics. It's so funny when people doubt that he's with… — Jim Norton Copy Share Image
Growing up in that fashion is a breeding ground for insecurity and doubt; it also leaves you questioning motives. It took me… — Damon Runyon Copy Share Image
Human beings have the incredible capacity for denial. I think they do. And although it's really hard to believe, I have my… — David Byrne Copy Share Image
Because a truly skeptical position would be a very uncertain one. — Rupert Sheldrake Copy Share Image
When you make that crossover from life to real life, when you're not treated as a child anymore but as a man,… — Ricky Williams Copy Share Image
“Nevertheless, a distinction must be made between skepticism as a philosophical thesis and skepticism as an attitude in life. As a philosophical… — Julián Marías Copy Share Image