“Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.”
— Richard P. Feynman
“The first principle is that you must not fool yourself and you are the easiest person to fool.”
“What I cannot create, I do not understand.”
“I, a universe of atoms, an atom in the universe.”
“You have no responsibility to live up to what other people think you ought to accomplish. I have no responsibility to be like they expect me to be. It’s their mistake, not my failing.”
“Teach principles not formulas.”
“I would rather have questions that can’t be answered than answers that can’t be questioned.”
“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.”
“I learned very early the difference between knowing the name of something and knowing something.”
“Scientists are explorers. Philosophers are tourists.”
“To not know math is a severe limitation to understanding the world.”
“Physics is like sex: sure, it may give some practical results, but that’s not why we do it.”
“The only way to deep happiness is to do something you love to the best of your ability.”
“Religion is a culture of faith; science is a culture of doubt.”
“I think it’s much more interesting to live not knowing than to have answers which might be wrong.”
“Physics isn’t the most important thing. Love is.”
“I wonder why. I wonder why. I wonder why I wonder.”
“If you thought that science was certain – well, that is just an error on your part.”
“The first principle is that you must not fool yourself – and you are the easiest person to fool. So you have to be very careful about that. After you’ve not fooled yourself, it’s easy not to fool other scientists. You just have to be honest in a conventional way after that.”
“I love only nature, and I hate mathematicians.”
“Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn’t matter.”
“Nature has a great simplicity and therefore a great beauty.”
“We need to teach how doubt is not to be feared but welcomed. It’s OK to say, “I don’t know.””
“There is no learning without having to pose a question. And a question requires doubt.”
“I was born not knowing and have had only a little time to change that here and there.”
“Know how to solve every problem that has been solved.”
“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.”
“Mathematics is a language plus reasoning; it is like a language plus logic. Mathematics is a tool for reasoning.”
“If all of mathematics disappeared, physics would be set back by exactly one week.”
“I think I can safely say that nobody understands Quantum Mechanics.”
“People who wish to analyze nature without using mathematics must settle for a reduced understanding.”
“Everything we know is only some kind of approximation, because we know that we do not know all the laws yet. Therefore, things must be learned only to be unlearned again or, more likely, to be corrected.”
“The highest forms of understanding we can achieve are laughter and human compassion.”
“The world is a dynamic mess of jiggling things.”
“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.”
“Experiment is the sole judge of the validity of any idea.”
“Tell your son to stop trying to fill your head with science – for to fill your heart with love is enough.”
“Do not read so much, look about you and think of what you see there.”
“Einstein was a giant. His head was in the clouds, but his feet were on the ground. But those of us who are not that tall have to choose!”
“The exception tests the rule.”
“Science is what we have learned about how to keep from fooling ourselves.”
“You see, the chemists have a complicated way of counting: instead of saying “one, two, three, four, five protons”, they say, “hydrogen, helium, lithium, beryllium, boron.””
“Outside of their particular area of expertise scientists are just as dumb as the next person.”
“The electron is a theory we use; it is so useful in understanding the way nature works that we can almost call it real.”
“My rule is, when you are unhappy, think about it. But when you’re happy, don’t. Why spoil it? You’re probably happy for some ridiculous reason and you’d just spoil it to know it.”
“It’s amazing how many people even today use a computer to do something you can do with a pencil and paper in less time.”
“To every man is given the key to the gates of heaven. The same key opens the gates of hell. And so it is with science.”
“There is enough energy in a single cubic meter of space to boil all the oceans in the world.”
“Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.”
“But see that the imagination of nature is far, far greater than the imagination of man.”
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