Geometry as a Branch of Physics (1949)
“"Some fool has put the head of this nail on the wrong end." "You idiot, it's for the opposite wall!" To be sure, if the space of physical objects allowed motions of translation only, and not also rotations. That space has such geometry is a fantasy; experience shows otherwise. It is only experience that makes this complaint and the rejoinder a dialogue of madmen.”
Source: "The Conduct of Inquiry", p. 35.
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Abraham Kaplan 8
American philosopher 1918–1993Related quotes

Letter to Marin Mersenne (July 27, 1638) as quoted by Florian Cajori, A History of Mathematics (1893) letter dated in The Philosophical Writings of Descartes Vol. 3, The Correspondence (1991) ed. John Cottingham, Robert Stoothoff, Dugald Murdoch
Samuel Marchbanks' Almanack (1967)
Context: Was driving through the countryside today with some people who insisted upon frequent recourse to a roadmap in order to discover, as they put it, "Just where they were." Reflected that for my part I generally have a pretty shrewd idea of just where I am; I am enclosed in the somewhat vulnerable fortress which is my body, and from that uneasy stronghold I make such sorties as I deem advisable into the realm about me. These people seemed to think that whizzing through space in a car really altered the universe for them, but they were wrong; each one remained right in the centre of his private universe, which is the only field of knowledge of which he has any direct experience.

"Energy and Force" (Mar 28, 1873)