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.

Sena Lund

I think it's a decent choice, and with the challenges Merck faces, they needed someone who knows the company and knows the environment,

Lynn Solomon

Have fun, work hard be safe. And realize the difference between hating a class because it challenges you and hating a class because you just don't like it.

Venus Williams

Life is challenging but I'm always up for a challenge.

Robert Winston

To build and strengthen new connections, the brain needs the challenge of fresh and unusual stimuli. .... There's a lot of evidence to suggest that repetition is bad for brain health, and novelty is good.

Robert Rodriguez

Only by seeking challenges can we hope to find the best in ourselves.

Robert Redford

Like all actors, I was open to taking on new challenges, including those outside my comfort zone.

Satoru Iwata

If you do the same thing as others, it will wear you out. Nintendo is not good at competing so we always have to challenge the status quo by making something new, rather than competing in an existing market.

Sarah MacLean

You plan to be a challenge, do you?" Juliana smiled angelically. "I agreed to remain, my lord. Not to remain silent.

Sarah Polley

I'm never sure what's coming next, but I'm an open minded person and I welcome any challenge.

Richard P. Feynman

For those who want some proof that physicists are human, the proof is in the idiocy of all the different units which they use for measuring energy.

Richelle Mead

Every relationship is different. Everyone loves differently.

Rose McIver

The reason I feel like I act is because you get to live a million different lives in one. I don't have to go about my life.

Troye Sivan

I realize that I'm kind of a different person than I thought I was.

Werner Heisenberg

The world thus appears as a complicated tissue of events, in which connections of different kinds alternate or overlap or combine and thereby determine the texture of the whole.

Werner Erhard

I used to be different. Now I'm the same.

Wallace Shawn

There's nothing regular about my life at all, really. I don't keep a regular schedule and every day is different. It's all rather chaotic.

Rudy Rucker

I like to do things that are surprising and different.

Rudolf Steiner

If we can simply distinguish between the different successive stages of evolution, it is possible to see primeval events within the earthly events of the present.