Richard P. Feynman Quotes

There were several possible solutions of the difficulty of classical electrodynamics, any one of which might serve as a good starting point to the solution of the difficulties of quantum electrodynamics.

With the exception of gravitation and radioactivity, all of the phenomena known to physicists and chemists in 1911 have their ultimate explanation in the laws of quantum electrodynamics.

Quantum field theory was originally developed for the treatment of electrodynamics, immediately after the completion of quantum mechanics and the discovery of the Dirac equation.

There's far more truth in the Book of Genesis than in the quantum theory.

I think I can safely say that nobody understands Quantum Mechanics.

Anyone who can contemplate quantum mechanics without getting dizzy hasn't understood it.

Physics is an otherworld thing, it requires a taste for things unseen, even unheard of- a high degree of abstraction... These faculties die off somehow when you grow up... profound curiosity happens when children are young. I think physicists are the Peter Pans of the human race... Once you are sophisticated, you know too much- far too much. Pauli once said to me, "I know a great deal. I know too much. I am a quantum ancient.".

Before games are played in common, no rules in the proper sense can come into existence. Regularities and ritualized schemas are already there, but these rites, being the work of the individual, cannot call forth that submission to something superior to the self which characterizes the appearance of any rule.

No one really understands quantum mechanics.

I was struck by - Einstein's a fascinating figure who didn't have any instruments that he used, he didn't use telescopes, he used his mind to try to understand the universe.

In England it is bad manners to be clever, to assert something confidently. It may be your own personal view that two and two make four, but you must not state it in a self-assured way, because this is a democratic country and others may be of a different opinion.

In my personal experience I have hardly come to know the wretchedness of mankind better than as a result of the general theory of relativity and everything connected to it. But it doesn't bother me.

I'm pretty much the same. I'm consistent. There aren't two mes. There is only one me. I can only be myself, and that's who I always am whether I'm at home or on the carpet.

I have tried to read philosophers of all ages and have found many illuminating ideas but no steady progress toward deeper knowledge and understanding. Science, however, gives me the feeling of steady progress: I am convinced that theoretical physics is actual philosophy. It has revolutionized fundamental concepts, e.g., about space and time (relativity), about causality (quantum theory), and about substance and matter (atomistics), and it has taught us new methods of thinking (complementarity) which are applicable far beyond physics.

The best theory comes from string theory, which states that dark matter is nothing but a higher vibration of the string. We are, in some sense, the lowest octave of a vibrating string.

Newtonian physics runs into problems at the subatomic level. Down there--in the land of hadrons, quarks, and Schrödinger's cat--things gent freaky. The cool rationality of Isaac Newton gives way to the bizarre unpredictability of Lewis Carroll.

Come in, Bean. Come in Julian Delphiki, longed-for child of good and loving parents. Come in, kidnapped child, hostage of fate. Come and talk to the Fates, who are playing such clever little games with your life.

The Universe is the game of the self, which plays hide and seek forever and ever.

I must say a word about fear. It is life's only true opponent. Only fear can defeat life. It is a clever, treacherous adversary, how well I know. It has no decency, respects no law or convention, shows no mercy. It goes for your weakest spot, which it finds with unerring ease. It begins in your mind, always. One moment you are feeling calm, self-possessed, happy. Then fear, disguised in the garb of mild-mannered doubt, slips into your mind like a spy.

To be good is to be in harmony with one's self.

Michio Kaku and Albert Einstein, they're both so ahead of our time. It's just fascinating to read about them, what their theories are on loopholes and everything else. It's fascinating stuff.

Arguing with anonymous strangers on the Internet is a sucker's game because they almost always turn out to be — or to be indistinguishable from — self-righteous sixteen-year-olds possessing infinite amounts of free time.

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.

If you know the wavefunction of the universe, why aren't you rich?

If we are going t stick to this damned quantum-jumping, then I regret that I ever had anything to do with quantum theory.