Representation Quotes (15 quotes)
A rill in a barnyard and the Grand Canyon represent, in the main, stages of valley erosion that began some millions of years apart.
Uniformitarianism. An Inquiry into Principle, Theory, and Method in Geohistory and Biohistory', M. K. Hecht and W. C. Steere (eds.), Essays in Evolution and Genetics in Honor of Theodosius Dobzhansky (1970), 83.
Although we know nothing of what an atom is, yet we cannot resist forming some idea of a small particle, which represents it to the mind ... there is an immensity of facts which justify us in believing that the atoms of matter are in some way endowed or associated with electrical powers, to which they owe their most striking qualities, and amongst them their mutual chemical affinity.
[Summarizing his investigations in electrolysis.]
[Summarizing his investigations in electrolysis.]
Experimental Researches in Electricity (1839), section 852. Cited in Laurie M. Brown, Abraham Pais, Brian Pippard, Twentieth Century Physics (1995), Vol. 1, 51.
Charles Babbage proposed to make an automaton chess-player which should register mechanically the number of games lost and gained in consequence of every sort of move. Thus, the longer the automaton went on playing game, the more experienced it would become by the accumulation of experimental results. Such a machine precisely represents the acquirement of experience by our nervous organization.
In ‘Experimental Legislation’, Popular Science (Apr 1880), 16, 754-5.
During its development the animal passes through all stages of the animal kingdom. The foetus is a representation of all animal classes in time.
In Lorenz Oken, trans. by Alfred Tulk, Elements of Physiophilosophy (1847), 491.
If the Easter pilgrims in Piazza San Pietro were to represent the carriers in a metal, then an insulator would resemble the Antarctic with one solitary traveller. In the abundance of carriers there is an enormous gap between conductors and insulators.
Speech, presenting the 1956 Nobel Prize in Physics to William Shockley, John Bardeen and Walter Houser Brattain. In Nobel Lectures: Physics 1942-1962 (1964), 315-6.
In fact, whenever energy is transmitted from one body to another in time, there must be a medium or substance in which the energy exists after it leaves one body and before it reaches the other ... and if we admit this medium as an hypothesis, I think it ought to occupy a prominent place in our investigations, and that we ought to endeavour to construct a mental representation of all the details of its action, and this has been my constant aim in this treatise.
A Treatise on Electricity and Magnetism (1873), Vol. 2, 438.
Man is the summit, the crown of nature's development, and must comprehend everything that has preceded him, even as the fruit includes within itself all the earlier developed parts of the plant. In a word, Man must represent the whole world in miniature.
In Lorenz Oken, trans. by Alfred Tulk, Elements of Physiophilosophy (1847), 2.
Nowadays group theoretical methods—especially those involving characters and representations, pervade all branches of quantum mechanics.
Group Theory and its Significance', Proceedings, American Philosophical Society (1973), 117, No. 5, 380.
Our knowledge springs from two fundamental sources of the mind; the first is the capacity of receiving representations (receptivity for impressions), the second is the power of knowing an object through these representations (spontaneity [in the production] of concepts).
Critique of Pure Reason (1781), trans. Norman Kemp Smith (1929), 92.
Physicists speak of the particle representation or the wave representation. Bohr's principle of complementarity asserts that there exist complementary properties of the same object of knowledge, one of which if known will exclude knowledge of the other. We may therefore describe an object like an electron in ways which are mutually exclusive—e.g., as wave or particle—without logical contradiction provided we also realize that the experimental arrangements that determine these descriptions are similarly mutually exclusive. Which experiment—and hence which description one chooses—is purely a matter of human choice.
The Cosmic Code: Quantum Physics as the Language of Nature (1982), 94.
Poetry, mythology, and religion represent the world as man would like to have it, while science represents the world as he gradually comes to discover it.
In The Modern Temper: a Study and a Confession (1956), 6.
The conception of objective reality ... has thus evaporated ... into the transparent clarity of mathematics that represents no longer the behavior of particles but rather our knowledge of this behavior.
In 'The Representation of Nature in Contemporary Physics', Daedalus (1958), 87, 95-108. As cited in Karl Popper, Quantum Theory and the Schism in Physics (1992), 85.
The conception that antibodies, which should protect against disease, are also responsible for the disease, sounds at first absurd. This has as its basis the fact that we are accustomed to see in disease only the harm done to the organism and to see in the antibodies solely antitoxic [protective] substances. One forgets too easily that the disease represents only a stage in the development of immunity, and that the organism often attains the advantage of immunity only by means of disease. ... Serum sickness represents, so to speak, an unnatural (artificial) form of disease.
C. von Pirquet and B. Schick, Die Serumkrankheit (1906), trans B. Schick, Serum Sickness (1951), 119-20.
What we believe, endorse, agree with, and depend on is representable and, increasingly, represented on the Web. We all have to ensure that the society we build with the Web is the sort we intend.
Weaving The Web: The Original Design and Ultimate Destiny of the World Wide Web (2004), 123.
With all reserve we advance the view that a supernova represents the transition of an ordinary star into a neutron star consisting mainly of neutrons. Such a star may possess a very small radius and an extremely high density. As neutrons can be packed much more closely than ordinary nuclei and electrons, the gravitational packing energy in a cold neutron star may become very large, and under certain conditions may far exceed the ordinary nuclear packing fractions...
[Co-author with Walter Baade]
[Co-author with Walter Baade]
Paper presented to American Physical Society meeting at Stanford (15-16 Dec 1933). Published in Physical Review (15 Jan 1934). Cited in P. Haensel, Paweł Haensel and A. Y. Potekhin, D. G. Yakovlev, Neutron Stars: Equation of State and Structure (2007), 2-3. Longer version of quote from Freeman Dyson, From Eros to Gaia (1992), 34. The theoretical prediction of neutron stars was made after analyzing observations of supernovae and proposed as an explanation of the enormous energy released in such explosions. It was written just two years after Chadwick discovered the neutron.
At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. -- Carl Sagan
