Richard Feynman citáty

Richard Feynman fotka
5   26

Richard Feynman

Dátum narodenia: 11. máj 1918
Dátum úmrtia: 15. február 1988
Ďalšie mená: Richard Feynman Philips, Richard Phillips Feynman, Ричард Филлипс Фейнман

Richard Phillips Feynman bol jedným z najlepších amerických fyzikov 20. storočia, ktorý značne rozšíril teóriu kvantovej elektrodynamiky, fyziky supratekutosti tekutého hélia a časticovej fyziky. Za svoju prácu o kvantovej elektrodynamike získal Feynman v roku 1965 Nobelovú cenu za fyziku. Bol odmenený spolu s Julianom Schwingerom a Sin-Itiro Tomonagom za spôsob ako pochopiť správanie sa subatomárnych častíc použitím perturbatívneho výpočtu znázorňovaného graficky pomocou obrazcov známych dnes pod pomenovaním Feynmannove diagramy. Bol taktiež inšpiratívny prednášajúci, amatérsky hudobník, podieľal sa na vývoji atómovej bomby a v roku 1986 bol členom Rogersovej komisie vyšetrujúcej haváriu raketoplánu Challenger.

„Fyzika sa má k matematike tak, ako se má sex k masturbácii.“

—  Richard Feynman

Physics is to math what sex is to masturbation.
Prisudzované výroky

„Boh bol vynájdený na vysvetlenie záhady. Boh je vždy vymyslený na vysvetlenie tých vecí, ktorým nerozumiete.“

—  Richard Feynman

God was invented to explain mystery. God is always invented to explain those things that you do not understand.
Citácia v: Superstrings: A Theory of Everything? (1988) autor: Paul C. W. Davies; autor: Julian R. Brown, str. 208-209, ISBN 0521354625
Potvrdené výroky

„Fyzika je ako sex, môže priniesť praktické výsledky, ale to nie je to, prečo to robíme.“

—  Richard Feynman

Physics is like sex. Sure, it may give some practical results, but that's not why we do it.
Prisudzované výroky

„Einstein bol génius, hlava v oblakoch, noha na zemi. Ale tí z nás, ktorí tak vysokí nie sú, tí si musia vybrať.“

—  Richard Feynman

Einstein was a genius: Head in the clouds, feet on the ground. But those of us who are not as tall, have to make a choice.
Prisudzované výroky

„V galaxii je 10^11 hviezd. Kedysi to bývalo skutočne veľké číslo. Ale je to len 100 miliárd, to je menej než schodok štátneho rozpočtu. Takým číslam sme hovorili astronomické, teraz im môžeme hovoriť ekonomické.“

—  Richard Feynman

There are 1011 stars in the galaxy. That used to be a huge number. But it's only a hundred billion. It's less than the national deficit! We used to call them astronomical numbers. Now we should call them economical numbers.
Prisudzované výroky

„What I cannot create, I do not understand.Know how to solve every problem that has been solved.“

—  Richard Feynman

on his blackboard at the time of death in February 1988; from a photo in the Caltech archives http://archives.caltech.edu/pictures/1.10-29.jpg

„I have a limited intelligence and I've used it in a particular direction.“

—  Richard Feynman, kniha The Pleasure of Finding Things Out

" The Pleasure of Finding Things Out http://www.worldcat.org/wcpa/servlet/DCARead?standardNo=0738201081&standardNoType=1&excerpt=true", p. 2-3, transcript of BBC TV Horizon interview (1981): video http://www.youtube.com/watch?v=NEwUwWh5Xs4&t=2m53s
The Pleasure of Finding Things Out (1999)
Kontext: I've always been rather very one-sided about the science, and when I was younger, I concentrated almost all my effort on it. I didn't have time to learn, and I didn't have much patience for what's called the humanities; even though in the university there were humanities that you had to take, I tried my best to avoid somehow to learn anything and to work on it. It's only afterwards, when I've gotten older and more relaxed that I've spread out a little bit — I've learned to draw, and I read a little bit, but I'm really still a very one-sided person and don't know a great deal. I have a limited intelligence and I've used it in a particular direction.

„The real problem in speech is not precise language. The problem is clear language.“

—  Richard Feynman

" New Textbooks for the "New" Mathematics http://calteches.library.caltech.edu/2362/1/feynman.pdf", Engineering and Science volume 28, number 6 (March 1965) p. 9-15 at p. 14
Paraphrased as "Precise language is not the problem. Clear language is the problem."
Kontext: The real problem in speech is not precise language. The problem is clear language. The desire is to have the idea clearly communicated to the other person. It is only necessary to be precise when there is some doubt as to the meaning of a phrase, and then the precision should be put in the place where the doubt exists. It is really quite impossible to say anything with absolute precision, unless that thing is so abstracted from the real world as to not represent any real thing.Pure mathematics is just such an abstraction from the real world, and pure mathematics does have a special precise language for dealing with its own special and technical subjects. But this precise language is not precise in any sense if you deal with real objects of the world, and it is only pedantic and quite confusing to use it unless there are some special subtleties which have to be carefully distinguished.

„It is really quite impossible to say anything with absolute precision, unless that thing is so abstracted from the real world as to not represent any real thing.“

—  Richard Feynman

" New Textbooks for the "New" Mathematics http://calteches.library.caltech.edu/2362/1/feynman.pdf", Engineering and Science volume 28, number 6 (March 1965) p. 9-15 at p. 14
Paraphrased as "Precise language is not the problem. Clear language is the problem."
Kontext: The real problem in speech is not precise language. The problem is clear language. The desire is to have the idea clearly communicated to the other person. It is only necessary to be precise when there is some doubt as to the meaning of a phrase, and then the precision should be put in the place where the doubt exists. It is really quite impossible to say anything with absolute precision, unless that thing is so abstracted from the real world as to not represent any real thing.Pure mathematics is just such an abstraction from the real world, and pure mathematics does have a special precise language for dealing with its own special and technical subjects. But this precise language is not precise in any sense if you deal with real objects of the world, and it is only pedantic and quite confusing to use it unless there are some special subtleties which have to be carefully distinguished.

Help us translate English quotes

Discover interesting quotes and translate them.

Start translating

„We are not to tell nature what she’s gotta be. … She's always got better imagination than we have.“

—  Richard Feynman

Sir Douglas Robb Lectures, University of Auckland (1979); lecture 1, "Photons: Corpuscles of Light" http://www.youtube.com/watch?v=eLQ2atfqk2c&t=48m01s

„I learned very early the difference between knowing the name of something and knowing something.“

—  Richard Feynman, kniha What Do You Care What Other People Think?

"The Making of a Scientist," p. 14 <!-- Feynman used variants of this bird story repeatedly: (1) "What is Science?", presented at the fifteenth annual meeting of the National Science Teachers Association, in New York City (1966) published in The Physics Teacher, volume 7, issue 6 (1969), p. 313-320. (2) Interview for the BBC TV Horizon program "The Pleasure of Finding Things Out" (1981), published in Christopher Sykes, No Ordinary Genius: The Illustrated Richard Feynman (1994), p. 27. -->
What Do You Care What Other People Think? (1988)
Kontext: You can know the name of that bird in all the languages of the world, but when you're finished, you'll know absolutely nothing whatever about the bird. You'll only know about humans in different places, and what they call the bird. … I learned very early the difference between knowing the name of something and knowing something.

„Our freedom to doubt was born out of a struggle against authority in the early days of science. It was a very deep and strong struggle: permit us to question — to doubt — to not be sure. I think that it is important that we do not forget this struggle and thus perhaps lose what we have gained.“

—  Richard Feynman

The Value of Science (1955)
Kontext: The scientist has a lot of experience with ignorance and doubt and uncertainty, and this experience is of very great importance, I think. When a scientist doesn’t know the answer to a problem, he is ignorant. When he has a hunch as to what the result is, he is uncertain. And when he is pretty darn sure of what the result is going to be, he is still in some doubt. 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. Now, we scientists are used to this, and we take it for granted that it is perfectly consistent to be unsure, that it is possible to live and not know. But I don’t know whether everyone realizes this is true. Our freedom to doubt was born out of a struggle against authority in the early days of science. It was a very deep and strong struggle: permit us to question — to doubt — to not be sure. I think that it is important that we do not forget this struggle and thus perhaps lose what we have gained.

„We can deduce, often, from one part of physics like the law of gravitation, a principle which turns out to be much more valid than the derivation.“

—  Richard Feynman, kniha The Character of Physical Law

Zdroj: The Character of Physical Law (1965), chapter 2, “ The Relation of Mathematics to Physics http://www.youtube.com/watch?v=M9ZYEb0Vf8U” referring to the law of conservation of angular momentum
Kontext: Now we have a problem. We can deduce, often, from one part of physics like the law of gravitation, a principle which turns out to be much more valid than the derivation. This doesn't happen in mathematics, that the theorems come out in places where they're not supposed to be!

„It is not unscientific to make a guess, although many people who are not in science think it is.“

—  Richard Feynman, kniha The Character of Physical Law

Zdroj: The Character of Physical Law (1965), chapter 7, “Seeking New Laws,” p. 165-166: video http://www.youtube.com/watch?v=-2NnquxdWFk&t=37m21s
Kontext: It is not unscientific to make a guess, although many people who are not in science think it is. Some years ago I had a conversation with a layman about flying saucers — because I am scientific I know all about flying saucers! I said “I don’t think there are flying saucers”. So my antagonist said, “Is it impossible that there are flying saucers? Can you prove that it’s impossible?” “No”, I said, “I can’t prove it’s impossible. It’s just very unlikely”. At that he said, “You are very unscientific. If you can’t prove it impossible then how can you say that it’s unlikely?” But that is the way that is scientific. It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible. To define what I mean, I might have said to him, "Listen, I mean that from my knowledge of the world that I see around me, I think that it is much more likely that the reports of flying saucers are the results of the known irrational characteristics of terrestrial intelligence than of the unknown rational efforts of extra-terrestrial intelligence." It is just more likely. That is all.

„It is important to realize that in physics today, we have no knowledge what energy is.“

—  Richard Feynman

volume I; lecture 4, "Conservation of Energy"; section 4-1, "What is energy?"; p. 4-2
Kontext: It is important to realize that in physics today, we have no knowledge what energy is. We do not have a picture that energy comes in little blobs of a definite amount. It is not that way.

„Have no respect whatsoever for authority; forget who said it and instead look what he starts with, where he ends up, and ask yourself, "Is it reasonable?"“

—  Richard Feynman, kniha What Do You Care What Other People Think?

"What Do You Care What Other People Think?", p. 28-29
What Do You Care What Other People Think? (1988)
Kontext: Doubting the great Descartes … was a reaction I learned from my father: Have no respect whatsoever for authority; forget who said it and instead look what he starts with, where he ends up, and ask yourself, "Is it reasonable?"

„God was always invented to explain mystery. God is always invented to explain those things that you do not understand.“

—  Richard Feynman

interview published in Superstrings: A Theory of Everything? (1988) edited by Paul C. W. Davies and Julian R. Brown, p. 208-209
Kontext: God was always invented to explain mystery. God is always invented to explain those things that you do not understand. Now, when you finally discover how something works, you get some laws which you're taking away from God; you don't need him anymore. But you need him for the other mysteries. So therefore you leave him to create the universe because we haven't figured that out yet; you need him for understanding those things which you don't believe the laws will explain, such as consciousness, or why you only live to a certain length of time — life and death — stuff like that. God is always associated with those things that you do not understand. Therefore I don't think that the laws can be considered to be like God because they have been figured out.

„Agnostic for me would be trying to weasel out and sound a little nicer than I am about this.“

—  Richard Feynman

Response when asked whether he called himself an atheist or an agnostic. The Voice of Genius: Conversations with Nobel Scientists and Other Luminaries by Denis Brian (1995), Basic Books, p. 49.
Kontext: [I call myself] an atheist. Agnostic for me would be trying to weasel out and sound a little nicer than I am about this.

„We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.“

—  Richard Feynman

The Value of Science (1955)
Kontext: We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.
... It is our responsibility to leave the people of the future a free hand. In the impetuous youth of humanity, we can make grave errors that can stunt our growth for a long time. This we will do if we say we have the answers now, so young and ignorant as we are. If we suppress all discussion, all criticism, proclaiming "This is the answer, my friends; man is saved!" we will doom humanity for a long time to the chains of authority, confined to the limits of our present imagination. It has been done so many times before.
... It is our responsibility as scientists, knowing the great progress which comes from a satisfactory philosophy of ignorance, the great progress which is the fruit of freedom of thought, to proclaim the value of this freedom; to teach how doubt is not to be feared but welcomed and discussed; and to demand this freedom as our duty to all coming generations.

„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“

Podobní autori

Albert Einstein fotka
Albert Einstein267
nemecko-americký fyzik a zakladateľ teórie relativity
Max Planck fotka
Max Planck5
nemecký teoretický fyzik
Steven Weinberg fotka
Steven Weinberg1
americký teoretický fyzik
Leon Max Lederman fotka
Leon Max Lederman1
americký matematik a fyzik
Stephen Hawking fotka
Stephen Hawking18
britský teoretický fyzik, kozmológ
Ernest Hemingway fotka
Ernest Hemingway88
americký autor a novinár
Pearl S.  Buck fotka
Pearl S. Buck23
americká spisovateľka
William Faulkner fotka
William Faulkner41
americký spisovateľ
John Steinbeck fotka
John Steinbeck51
americký spisovateľ
William Henry Bragg fotka
William Henry Bragg1
britský vedec
Dnešné výročie
Henry Ford fotka
Henry Ford63
americký priemyselník 1863 - 1947
Otto Von Bismarck fotka
Otto Von Bismarck30
nemecký štátnik, kancelár Nemecka 1815 - 1898
Arnold Schwarzenegger fotka
Arnold Schwarzenegger19
rakúsko-americký herec, podnikateľ a politik 1947
Emily Bronte fotka
Emily Bronte6
britská spisovateľka, poetka a učiteľka 1818 - 1848
Ďalších 16 výročí
Podobní autori
Albert Einstein fotka
Albert Einstein267
nemecko-americký fyzik a zakladateľ teórie relativity
Max Planck fotka
Max Planck5
nemecký teoretický fyzik
Steven Weinberg fotka
Steven Weinberg1
americký teoretický fyzik
Leon Max Lederman fotka
Leon Max Lederman1
americký matematik a fyzik
Stephen Hawking fotka
Stephen Hawking18
britský teoretický fyzik, kozmológ