Richard Feynman nejznámější citáty
„Fyzikální zákony platí i tam, kam jsme se ještě nedívali.“
Zdroj: [Grygar, Jiří, Jiří Grygar, Vesmír, jaký je: současná kosmologie (téměř) pro každého, 1, Mladá fronta, Praha, 1997, 217, Kolumbus, 135, 12, 80-204-0637-9]
Richard Feynman: Zamilované citáty
Richard Feynman citáty a výroky
„Každý člověk obdrží klíč od nebeské brány. Tentýž klíč však také odemyká bránu pekel.“
citace neznámého průvodce z Havaje
Dílo, To nemyslíte vážně, pane Feynmane!
Zdroj: [Pincott, Jena, Mají muži radši blondýnky?: láska, sex a přitažlivost, Nicolle Knapová, Dobrovský s.r.o., Praha, 2017, 296, Knihy Omega, Úvod, 9, 978-80-7390-460-9]
Psal to někdo, kdo pořádně nevěděl, o čem mluví, takže to bylo vždycky trochu špatně! A jak dobře učit podle knížek napsanými lidmi, kteří pořádně nerozumějí tomu, o čem mluví, to nedovedu pochopit. Nevím proč, ale ty knížky byly mizerné; MIZERNÉ PO VŠECH STRÁNKÁCH! Něco vypadalo na první pohled dobře, a pak mě z toho jímal děs. A takhle to vypadalo se všemi těmi knihami. Vykládaly o věcech, které byly neužitečné, zmatené a matoucí, mnohoznačné a částečně nesprávné.
Dílo, To nemyslíte vážně, pane Feynmane!
Richard Feynman: Citáty anglicky
volume II; lecture 2, "Differential Calculus of Vector Fields"; section 2-1, "Understanding physics"; p. 2-1
The Feynman Lectures on Physics (1964)
Zdroj: The Character of Physical Law (1965), chapter 1, “The Law of Gravitation,” p. 34
“Why are the theories of physics so similar in their structure?”
QED: The Strange Theory of Light and Matter (1985)
same passage in transcript: video http://www.youtube.com/watch?v=-2NnquxdWFk&t=16m46s
The Character of Physical Law (1965)
Varianta: In general we look for a new law by the following process. First we guess it. Then we compute the consequences of the guess to see what would be implied if this law that we guessed is right. Then we compare the result of the computation to nature, with experiment or experience, compare it directly with observation, to see if it works. If it disagrees with experiment it is wrong. In that simple statement is the key to science. It does not make any difference how beautiful your guess is. It does not make any difference how smart you are, who made the guess, or what his name is – if it disagrees with experiment it is wrong. That is all there is to it.
“I think I can safely say that nobody understands quantum mechanics.”
Varianta: I think I can safely say that nobody understands quantum mechanics.
Zdroj: The Character of Physical Law (1965), chapter 6, “Probability and Uncertainty — the Quantum Mechanical View of Nature,” p. 129
volume II; lecture 26, "Lorentz Transformations of the Fields"; section 26-1, "The four-potential of a moving charge"; p. 26-2
The Feynman Lectures on Physics (1964)
“I hope … that you will find someday that, after all, it isn’t as horrible as it looks.”
volume III, "Feynman's Epilogue", p. 21-19
The Feynman Lectures on Physics (1964)
Zdroj: QED: The Strange Theory of Light and Matter (1985), p. 24
On the numerical value of α, the fine-structure constant, p. 129
QED: The Strange Theory of Light and Matter (1985)
Zdroj: No Ordinary Genius (1994), p. 239, from interview in "The Pleasure of Finding Things Out" (1981): video http://www.youtube.com/watch?v=NEwUwWh5Xs4&t=48m10s
" Simulating Physics with Computers http://www.cs.berkeley.edu/~christos/classics/Feynman.pdf", International Journal of Theoretical Physics, volume 21, 1982, p. 467-488, at p. 486 (final words)
from a 1987 class, as quoted in David L. Goodstein, "Richard P. Feynman, Teacher," Physics Today, volume 42, number 2 (February 1989) p. 70-75, at p. 73
Republished in the "Special Preface" to Six Easy Pieces (1995), p. xx.
Zdroj: The Character of Physical Law (1965), chapter 1, “The Law of Gravitation,” p. 18: video http://www.youtube.com/watch?v=j3mhkYbznBk&t=17m10s
Part 1: "From Rockaway to MIT", "String Beans", p. 25
Surely You're Joking, Mr. Feynman! (1985)
"The Development of the Space-Time View of Quantum Electrodynamics," Nobel Lecture http://nobelprize.org/physics/laureates/1965/feynman-lecture.html (11 December 1965)
rather than with the event
Zdroj: QED: The Strange Theory of Light and Matter (1985), p. 75-76
We haven’t any deep understanding of what we’re doing. If we tried to understand what we’re doing, we’d go nutty.
Zdroj: No Ordinary Genius (1994), p. 236, from interview two weeks before his death in "The Quest for Tannu Tuva" (1989): video http://www.youtube.com/watch?v=Mn4_40hAAr0&t=51m49s
“The fact that you are not sure means that it is possible that there is another way someday.”
lecture II: "The Uncertainty of Values"
The Meaning of It All (1999)
Zdroj: The Character of Physical Law (1965), chapter 7, “Seeking New Laws,” p. 168
Probably a misattribution which instead originated with David Mermin; in "Could Feynman Have Said This?" http://scitation.aip.org/journals/doc/PHTOAD-ft/vol_57/iss_5/10_1.shtml?bypassSSO=1, by N. David Mermin, in Physics Today (May 2004), p. 10, he notes that in an earlier Physics Today (April 1989), p. 9, he had written what appears to be the earliest occurrence of the phrase:
If I were forced to sum up in one sentence what the Copenhagen interpretation says to me, it would be "Shut up and calculate!"
Disputed and/or attributed
“Principles
You can't say A is made of B
or vice versa.
All mass is interaction.”
note (c. 1948), quoted in Genius: The Life and Science of Richard Feynman (1992) by James Gleick, p. 5 (repeated p. 283)
Zdroj: QED: The Strange Theory of Light and Matter (1985), p. 14
volume I; lecture 44, "The Laws of Thermodynamics"; section 44-1, "Heat engines; the first law"; p. 44-2
The Feynman Lectures on Physics (1964)
From Omni interview, "The Smartest Man in the World" (1979) p. 203
The Pleasure of Finding Things Out (1999)
“Nature's imagination far surpasses our own.”
Zdroj: The Character of Physical Law (1965), chapter 7, “Seeking New Laws,” p. 162: video http://www.youtube.com/watch?v=-2NnquxdWFk&t=29m20s
Part 4: "From Cornell to Caltech, With a Touch of Brazil", "Any Questions?", p. 177
Surely You're Joking, Mr. Feynman! (1985)
Part 1: "From Rockaway to MIT", "Who Stole the Door?", p. 36-37
Surely You're Joking, Mr. Feynman! (1985)
" Cargo Cult Science http://calteches.library.caltech.edu/51/2/CargoCult.htm", adapted from a 1974 Caltech commencement address; also published in Surely You're Joking, Mr. Feynman!, p. 341
Zdroj: The Character of Physical Law (1965), chapter 6, “Probability and Uncertainty — the Quantum Mechanical View of Nature,” p. 127-128