Henri Poincaré Quote
Nothing but facts are of importance. John Lackland passed by here. Here is something that is admirable. Here is a reality for which I would give all the theories in the world." That is the language of the historian. The physicist would say rather: "John Lackland passed by here; that makes no difference to me, for he never will pass this way again."
The Foundations of Science, Science and Hypothesis, Part IV, Chapter IX (p. 128), The Science Press. 1913