We are never absolutely right, we can only be sure we are wrong.

Confusion is data—treat it like a measurement, not a mood.

If you think you can, you may. If you think you can't, you're right.

I believe, the power of governments should be limited. Governments ought not to be empowered to decide the validity of scientific theories.

If you think you can, you may. If you think you can't, you're right.

You don’t discover truth by sounding certain; you discover it by staying curious.

Statements of science are not of what is true and what is not true, but statements of what is known with different degrees of certainty.

Teach principles not formulas.

We are never absolutely right, we can only be sure we are wrong.

Confusion is data—treat it like a measurement, not a mood.

Teach principles not formulas.

When your "education" limits your imagination it's called indoctrination. Those who cannot think for themselves are truly lost.

The job is not to be right—it’s to be less wrong, reliably.

I always do that, get into something and see how far I can go.

If you're stuck, simplify. If you're still stuck, simplify again.

The highest forms of understanding we can achieve are laughter and human compassion.

Cultivate insight, not just information.

The deepest mysteries often survive because we keep asking them in the wrong variables.

I'm smart enough to know that I'm dumb.

All the time you're saying to yourself, 'I could do that, but I won't,' — which is just another way of saying that you can't.

Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough.

The more you learn, the more you realize how little you know.

You don't like it? Go somewhere else! as said by Richard Feynman in one of his lectures at University of Auckland.

“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.”

“The individual member of the social community often receives his information via visual, symbolic channels.” I went back and forth over it, and translated. You know what it means? “People read.”

“There is nothing that living things do that cannot be understood from the point of view that they are made of atoms acting according to the laws of physics.”

“Philosophers say a great deal about what is absolutely necessary for science, and it is always, so far as one can see, rather naive, and probably wrong.”

“We have found it of paramount importance that in order to progress we must recognize our ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty—some most unsure, some nearly sure, but none absolutely certain.”

“The imagination of nature is far, far greater than the imagination of man.”

“Physicists like to think that all you have to do is say, these are the conditions, now what happens next?”

“The things that mattered were honesty, independence, willingness to admit ignorance.”

“I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers that might be wrong.”

“I have no responsibility to live up to what others expect of me. That's their mistake, not my failing.”

“You can’t say A is made of B or vice versa. All mass is interaction.”

“Why nature is mathematical is, again, a mystery.”

“Science is the organized skepticism in the reliability of expert opinion.”

“Some people say, How can you live without knowing? I do not know what they mean. I always live without knowing. That is easy. How you get to know is what I want to know.”

“Thank you very Much, I enjoyed myself”

“It is impossible to explain honestly the beauties of the laws of nature in a way that people can feel, without their having some deep understanding of mathematics. I am sorry, but this seems to be the case.”

“It doesn't make a difference how beautiful your guess is. It doesn't make a difference how smart you are, who made the guess, or what his name is. If it disagrees with experiment, it's wrong.”

“Knowledge isn't free. You have to pay attention.”

“Poets say science takes away from the beauty of the stars - mere globs of gas atoms. I, too, can see the stars on a desert night, and feel them. But do I see less or more?”

“I love to think. I once considered taking drugs as an attempt to better understand an altered state of mind; however, I decided not to. I didn't want to chance ruining the machine.”

“innovation is a very difficult thing in the real world”

“I would rather have questions that can’t be answered than answers that can’t be questioned.”

“The female mind is capable of understanding analytic geometry... The difficulty may just be that we have never yet discovered a way to communicate with the female mind. If it is done in the right way, you may be able to get something out of it.”

“To those who do not know mathematics it is difficult to get across a real feeling as to the beauty, the deepest beauty, of nature ... If you want to learn about nature, to appreciate nature, it is necessary to understand the language that she speaks in.”

“I don't feel frightened by not knowing things, by being lost in a mysterious universe without any purpose, which is the way it really is, as far as I can tell. Possibly. It doesn't frighten me.”

“There's a big difference between knowing the name of something and knowing something.”

“But there is nothing in biology yet found that indicates the inevitability of death.”