Famous Quotes & Sayings

Richard P. Feynman

I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong. If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives. We will not become enthusiastic for the fact, the knowledge, the absolute truth of the day, but remain always uncertain … In order to make progress, one must leave the door to the unknown ajar.

Richard P. Feynman

Unless a thing can be defined by measurement, it has no place in a theory. And since an accurate value of the momentum of a localized particle cannot be defined by measurement it therefore has no place in the theory.

Richard P. Feynman

It is odd, but on the infrequent occasions when I have been called upon in a formal place to play the bongo drums, the introducer never seems to find it necessary to mention that I also do theoretical physics.

Richard P. Feynman

Science is a way to teach how something gets to be known, what is not known, to what extent things are known (for nothing is known absolutely), how to handle doubt and uncertainty, what the rules of evidence are, how to think about things so that judgments can be made, how to distinguish truth from fraud, and from show.

Richard P. Feynman

Scientists are explorers. Philosophers are tourists.

Richard P. Feynman

The difficulty really is psychological and exists in the perpetual torment that results from your saying to yourself, "But how can it be like that?" which is a reflection of uncontrolled but utterly vain desire to see it in terms of something familiar. ... If you will simply admit that maybe [Nature] does behave like this, you will find her a delightful, entrancing thing. Do not keep saying to yourself, if you can possible avoid it, "But how can it be like that?" because you will get 'down the drain', into a blind alley from which nobody has escaped. Nobody knows how it can be like that.

Richard P. Feynman

If you thought that science was certain - well, that is just an error on your part.

Richard Dawkins

Cheetah genes cooperate with cheetah genes but not with camel genes, and vice versa. This is not because cheetah genes, even in the most poetic sense, see any virtue in the preservation of the cheetah species. They are not working to save the cheetah from extinction like some molecular World Wildlife Fund.

Richard Whately

To teach one who has no curiosity to learn, is to sow a field without ploughing it.

Joe White

He didn't put them anyplace that they could be seen by children.

John DeLuca

There are so many other things for us to talk about that it just hasn't come up, ... We'll say 'How's it going?' and that's about it. By the end of the day, we've usually seen each other's work, anyway.

Dave Leitao

He's having not only a career, but particularly this season, a year for the ages. I've watched it, I've studied it on film and now I've seen it in person.

Charles Golvin

I haven't seen any discounting from Comcast other than the short-term discounts for signing up,

Steve Pardue

I have never seen that in my 21 years of coaching. We haven't done anything like that before. I'm not sure what happened.

James Dunn

I have never seen such solidarity. It was a consistently united voice.

Greg Willett

I have never seen him so white and sick.

Phil Jackson

I have never seen anything like that. It was pretty impressive.

Lori Crunk

I haven't actually seen it because every time I've been around it's been wrapped. I do know there was some discoloration and swelling.