Richard Feynman quote: “Therefore psychologically we must keep all the theories in our heads, and every theoretical physicist who is any good k…”

“Every physicist (naturally, this equally applies to other specialities, but I re- strict myself to physicists for definitiveness) should simultaneously know, apart from theoretical physics, a wealth of facts from different branches of physics and be familiar with the newest notable accomplishments.”

Vitaly Ginzburg (1916–2009) Russian Physicist

in his Nobel lecture http://nobelprize.org/nobel_prizes/physics/laureates/2003/ginzburg-lecture.html, December 8, 2003, at Aula Magna, Stockholm University.

“There you have, then, a theoretical physics which is neither the theory of a believer nor that of a nonbeliever, but merely and simply a theory of a physicist; admirably suited to classify the laws studied by the experimenter, it is incapable of opposing any assertion whatever of metaphysics or of religious dogma, and is equally incapable of lending effective support to any such assertion.”

Pierre Duhem (1861–1916) French physicist, historian of science

Notice sur les Titres et Travaux scientifiques de Pierre Duhem rédigée par lui-même lors de sa candidature à l'Académie des sciences (mai 1913), The Aim and Structure of Physical Theory (1906)

“It is well known that theoretical physicists cannot handle experimental equipment; it breaks whenever they touch it. Pauli was such a good theoretical physicist that something usually broke in the lab whenever he merely stepped across the threshold.”

George Gamow (1904–1968) Russian-American physicist and science writer

Thirty Years That Shook Physics : The Story of Quantum Theory (1966), p. 64
Context: It is well known that theoretical physicists cannot handle experimental equipment; it breaks whenever they touch it. Pauli was such a good theoretical physicist that something usually broke in the lab whenever he merely stepped across the threshold. A mysterious event that did not seem at first to be connected with Pauli's presence once occurred in Professor J. Franck's laboratory in Göttingen. Early one afternoon, without apparent cause, a complicated apparatus for the study of atomic phenomena collapsed. Franck wrote humorously about this to Pauli at his Zürich address and, after some delay, received an answer in an envelope with a Danish stamp. Pauli wrote that he had gone to visit Bohr and at the time of the mishap in Franck's laboratory his train was stopped for a few minutes at the Göttingen railroad station. You may believe this anecdote or not, but there are many other observations concerning the reality of the Pauli Effect!

“The reader may ask why in this book string theory and supersymmetry have not been discussed. … The fact is that this book is about physics and this implies that the theoretical ideas discussed must be supported by experimental facts. Neither supersymmetry and string theory satisfy this criterion. They are figments of the theoretical mind.”

Martinus J. G. Veltman (1931) Dutch physicist

[Martinus Veltman, Facts and mysteries in elementary particle physics, World Scientific, 2003, 981238149X, 308, https://books.google.com/books?id=CNCHDIobj0IC&pg=PA308]

“The conclusion this article reaches, based on the presented arguments, is that Evolutionary Psychology (EP) may be a contribution to psychological science at several different, important levels. First, EP allows psychologists to communicate between different areas of psychological interest, and with other branches of science relevant to psychology as a life science. Second, EP provides a well-researched, rigorously formulated theory for evaluating any other psychological theory. The theory may prevent one from suggesting abilities that could not evolve but have been suggested within almost all psychological disciplines. The versatility EP shows as a theoretical framework for disciplines as different as psychoanalysis and cognitive science, suggests that EP may succeed in integrating psychological science. It also supports the claim that EP is as theoretically valid a science as cognitive science and evolutionary biology. EP also brings to psychology the focus on a theoretically rigorous and predictive theory of Human Nature, and the functional approach, which may provide maturation from the level of mere descriptive science. At the level of generating new theories and insights about Human Nature, EP seems to have proven its worth.”

Leif Edward Ottesen Kennair (1970)

"Evolutionary Psychology: An Emerging Integrative Perspective Within The Science And Practice Of Psychology" (2002)

“Feynman was not a theorist's theorist, but a physicist's physicist and a teacher's teacher. Feynman's theoretical concepts opened up research opportunities for experimenters, and his approach to physics dignified the role played by their work.”

Valentine Telegdi (1922–2006) American physicist

[Physics Today, A Lowbrow's View of Feynman, 42, 2, 1989, 10.1063/1.881197] (p. 85)

“I decided to get Ph. D. in experimental physics because experimental physicists have their own room in the Institute where they can hang their coat, whereas theoretical physicists have to hang their coat at the entrance.”

George Gamow (1904–1968) Russian-American physicist and science writer

"Interview with George Gamow" http://www.aip.org/history/ohilist/4325.html, by Charles Weiner at Professor Gamow's home in Boulder, Colorado (25 April 1968)

“Different methodologies express different rationalities stemming from alternative theoretical positions which they reflect. These alternative positions must be respected, and methodologies and their appropriate theoretical underpinnings developed in partnership.”

Robert L. Flood (1959) British organizational scientist

Source: Creative Problem Solving (1991), p. 47-48; As cited in: Steve Clarke (2001) " Mixing Methods for Organisational Intervention: Background and Current Status http://www.bcs.org/upload/pdf/steve-clarke-paper.pdf"

“Different methodologies express different rationalities stemming from alternative theoretical positions which they reflect. These alternative positions must be respected, and methodologies and their appropriate theoretical underpinnings developed in partnership.”

Mike Jackson (1951) systems scientist

Source: Creative Problem Solving: Total Systems Intervention (1991), p. 47-48; As cited in: Steve Clarke (2001) " Mixing Methods for Organisational Intervention: Background and Current Status http://www.bcs.org/upload/pdf/steve-clarke-paper.pdf"

“Theoretical approaches have their place and are, I suppose, essential but a theory must be tempered with reality.”

Jawaharlal Nehru (1889–1964) Indian lawyer, statesman, and writer, first Prime Minister of India

Jawaharlal Nehru's Speeches 1949 - 1953 (1954), p. 235

“Therefore psychologically we must keep all the theories in our heads, and every theoretical physicist who is any good knows six or seven different theoretical representations for exactly the same physics.”

Help us to complete the source, original and additional information

Richard Feynman 181

Related quotes

Related topics