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.

Chris Porter

Knowing you're a part of this ... is something.

Katha Pollitt

knowing that it's there for them if they really need it.

Tiki Barber

Knowing Stray, he'll play. He was walking around, but he wasn't walking all right. But he's always ready to play, even when he's hurting, he's OK.

Anthony Fauci

It is an indescribable experience knowing that what you are doing will have an impact on the lives... of millions of people.

Brenda Griffin

I can leave knowing that this school is operating smoothly.

Richard Paul Evans

The sin of the desert is knowing where the water is and not sharing it.

Russell Crowe

You don't want to be starting a film not knowing what you want to do.

Truman Capote

I'm very scared, Buster. Yes, at last. Because it could go on forever. Not knowing what's yours until you've thrown it away.

William Safire

Give your main clause a little space. Prose is not like boxing; the skilled writer deliberately telegraphs his punch, knowing that the reader wants to take the message directly on the chin.

Stephen Hadley

I would say that is some real progress.

Samuel Johnson

There is a frightful interval between the seed and the timber.

Walt Disney

Progress is impossible without change

Samuel Johnson

To do nothing is in everyone's power.

Melanie Sloan

Particularly in the House, the progress is very slow and may end up with very little reform.

Robert Einhorn

In retrospect, we impeded a lot more of their progress than we knew.

Hossein Entezami

The continuation of talks shows there is progress.

Khalil Gibran

You progress not through what has been done, but reaching towards what has yet to be done.

Kevin A. Ford

Well, the coolest thing I have seen so far, in terms of, like, me being an astronaut and seeing something unusual, was the rendezvous, the docking of a Progress spaceship.