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.

James Wicklund

There are so many variables to watch. With the API numbers on the way, everyone is in a wait and see attitude.

Charles Steinberg

What we have not seen in any significant numbers is people who refuse.

John Lindsey

Here, we're running into the problem of specific numbers again,

Bob White

I don't feel that their numbers and 'facts' are very accurate.

Steve Tisch

I'd be shocked if the suggestion internally to recommend two teams ever comes up. I think the numbers are too big. I think it would be an overwhelming suggestion. Over time, possibly.

Doreen Marchione

Ideally, we'd want to work ourselves out of business. There will always be some people who need help. But, ultimately, we want to work to see the numbers going down.

Richard P. Feynman

Few people realize the number of things that are possible.

Richard J. Needham

When people are against profits they're against business; when they're against business, they're against employment; when they're against employment, it's not surprising that a large number of them are unemployed.

Russell Hoban

Them as counts counts moren them as dont count

Walter Kohn

Originally I had planned to revert to nuclear physics there, in particular the structure of the deuteron.

Christopher Hill

Once they are back in the Nuclear Nonproliferation Treaty, with IAEA safeguards, at an appropriate time we will have discussions about the subject of the provision of a light-water nuclear reactor.

Joe Lieberman

The danger of terrorists and rogue states is compounded by the proliferation of chemical, biological, radiological, and nuclear weapons.

Jane Jacobs

While politicians, clergy, creators of advertisements, and other worthies assert stoutly that the family is the foundation of society, the nuclear family, as an institution, is currently in grave trouble.

Ban Ki-moon

Nuclear disarmament is the only sane path to a safer world.

Donald Rumsfeld

After he saw what happened to Saddam Hussein, he ( Gaddafi ) did not want to be Saddam Hussein. He gave up his nuclear program.

Andrei Sakharov

In 1947 I defended my thesis on nuclear physics, and in 1948 I was included in a group of research scientists whose task was to develop nuclear weapons.

Amory Lovins

Nuclear power has died of an incurable attack of market forces and is way beyond any hope of revival, because the competitors are several-fold cheaper and are getting rapidly more so.

Thomas Schelling

When I used to theorize about a nuclear standoff, I didn't really have to understand what was happening inside the Soviet Union. It is a lot harder now to build a theory that can encompass all the complications of today's conflicts.