William John Macquorn Rankine (1820–1872) civil engineer
Source: "Outlines of the Science of Energetics," (1855), p. 121; Lead paragraph: Section "What Constitutes A Physical Theory"
From Lettre à Maurice Solvine, by A. Einstein (Gauthier-Villars: Paris 1956)
Attributed in posthumous publications, Albert Einstein: A guide for the perplexed (1979)
William John Macquorn Rankine (1820–1872) civil engineer
Source: "Outlines of the Science of Energetics," (1855), p. 121; Lead paragraph: Section "What Constitutes A Physical Theory"
Fritjof Capra book The Tao of Physics
Source: The Tao of Physics (1975), Ch. 1, Modern Physics, p. 19.
“The assumptions and definitions of mathematics and science come from our intuition”
Richard Hamming (1915–1998) American mathematician and information theorist
Methods of Mathematics Applied to Calculus, Probability, and Statistics (1985)
Context: The assumptions and definitions of mathematics and science come from our intuition, which is based ultimately on experience. They then get shaped by further experience in using them and are occasionally revised. They are not fixed for all eternity.
E. W. Hobson (1856–1933) British mathematician
Source: Presidential Address British Association for the Advancement of Science, Section A (1910), p. 290 ; Cited in: Moritz (1914, 29): The Nature of Mathematics.
Kim Stanley Robinson book The Years of Rice and Salt
Book 9: "Nsara", § 5
The Years of Rice and Salt (2002)
William John Macquorn Rankine (1820–1872) civil engineer
Source: A Manual of the Steam Engine and Other Prime Movers (1859), p. 31
Kurt Lewin (1890–1947) German-American psychologist
Source: 1930s, A Dynamic Theory of Personality, 1935, p. 42 as cited in: Anthony C. Westerhof (1938) Representative psychologists. p. 48.
Richard Courant (1888–1972) German American mathematician (1888-1972)
Richard Courant in: The Australian Mathematics Teacher, Volumes 39-40 http://books.google.co.in/books?id=CofxAAAAMAAJ, Australian Association of Mathematics Teachers, 1983, p. 3
Bernard d'Espagnat (1921–2015) French physicist and philosopher
in Une réouverture des chemins du sens, edited by [Jean Staune, Science et quête de sens, Presses de la Renaissance, 2005, 2750901251, 26]
Bernard Le Bovier de Fontenelle (1657–1757) French writer, satirist and philosopher of enlightenment
Elements de la géométrie de l'infini (1727) as quoted by Amir R. Alexander, Geometrical Landscapes: The Voyages of Discovery and the Transformation of Mathematical Practice (2002) citing Michael S. Mahoney, "Infinitesimals and Transcendent Relations: The Mathematics of Motion in the Late Seventeenth Century" in Reappraisals of the Scientific Revolution, ed. David C. Lindberg, Robert S. Westman (1990)