“In the theory of electric fields it is assumed that points have meaning. …Physicists using general relativity… cannot speak of a point, except by naming some features of the field lines that will uniquely distinguish that point. …the network of relationships evolve with time… constantly changing.”

Source: 1980s, Laws of Media: The New Science (with Eric McLuhan) (1988), p. 111

Three Roads to Quantum Gravity (2000)

Source: "The iron cage revisited: Institutional isomorphism and collective rationality in organizational fields," 1983, p. 148

The Churn (2014)

as translated by Martin H. Krieger "A 1940 letter of André Weil on analogy in mathematics." http://www.ams.org/notices/200503/fea-weil.pdf Notices of the AMS 52, no. 3 (2005) pp. 334–341, quote on p. 340

Footnote
Geometry as a Branch of Physics (1949)

Three Roads to Quantum Gravity (2000)

Source: Mathematical Thought from Ancient to Modern Times (1972), p. 176
Context: The relationship of point to line bothered the Greeks and led Aristotle to separate the two. Though he admits points are on lines, he says that a line is not made up of points and that the continuous cannot be made up of the discrete. This distinction contributed also to the presumed need for separating number from geometry, since to the Greeks numbers were discrete and geometry dealt with continuous magnitudes.

Letter to the Michelson Commemorative Meeting of the Cleveland Physics Society (1952), as quoted by R.S.Shankland, Am J Phys 32, 16 (1964), p35, republished in A P French, Special Relativity, ISBN 0177710756
1950s