Feynman, Richard

"I don't care whether a thing has already been done. Is it interesting now?"

"I wonder why. I wonder why. I wonder why I wonder. I wonder why I wonder why I wonder why I wonder."

"A scientist is someone who enjoys the intellectual adventure of solving scientific problems."

"Knowledge is of little value if you cannot find things out for yourself."

"To me, it is clear that the chief end of scientific work is to understand the world, not to make a complicated mess of it."

"The most important tool of the theoretical physicist is his wastebasket."

"Studying physics is the most wonderful preparation for living."

"I have approximate answers and possible beliefs and different degrees of certainty about different things."

"The world is a very interesting place if you just stop and look at it."

"I find that it is of paramount importance that I forget, at least from time to time, that my job is not to know, but to find out."

"The effort required to understand the universe reveals something about its true nature."

"What is the most important thing in life? I don't know - it is not given to us to know."

"No government has the right to decide on the truth of scientific matters."

"I'm an optimist. It seems logically absurd to be anything else."

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

"Do not worry about your difficulties in mathematics; I can assure you that mine are still greater."

"The same equations have the same solutions."

"Imagine if every piece of knowledge you tried to remember had to be connected to every other piece."

"I used to do experiments in my room."

"The purpose of computation by machine is insight, not numbers."

"Everything that is interesting is new. That is the way the world works."

"Mathematicians usually don't care how their work is used."

"Is there a simple explanation for what we observe?"

"You are not responsible for the world that's in front of you, but you are responsible for the world that you leave behind you."

"The question of whether machines can think is about as relevant as the question of whether submarines can swim."

"I don't think I can really define it for you. You'll have to just kind of experience it yourself."

"The problem is that people have forgotten that life is the game. Money is just the way we keep score."

"Our responsibility is to do what we can, learn what we can, improve the solutions we know."

"I would rather have a free society in which we get into trouble, than a controlled society in which we don't."

"What I have to do is make myself feel better in order to do a better job."