"Comparing the rough data of our senses with that extremely complex and subtle conception which mathematicians call magnitude, we are compelled to recognise a divergence. The framework into which we wish to make everything it is one of our own construction; but we did not construct it at random, we constructed it by measurement so to speak; and that is why we can it the facts into it without altering their essential qualities." (Henri Poincaré, "Science and Hypothesis", 1901)
"Syllogistic reasoning remains incapable of adding anything
to the data that are given it; the data are reduced to axioms, and that is all
we should find in the conclusions." (Henri Poincaré, "Science and
Hypothesis", 1901)
"By no process of sound reasoning can a conclusion drawn from limited data have more than a limited application." (Jospeph W Mellor, "Higher Mathematics for Students of Chemistry and Physics", 1902)
"[...] the data with which any scientific inquiry has to do are trivialities in some other bearing than that one in which they are of account." (Thorstein Veblen, "The Place of Science in Modern Civilisation and Other Essays", 1906)
"So completely is nature mathematical that some of the more exact natural sciences, in particular astronomy and physics, are in their theoretic phases largely mathematical in character, while other sciences which have hitherto been compelled by the complexity of their phenomena and the inexactitude of their data to remain descriptive and empirical, are developing towards the mathematical ideal, proceeding upon the fundamental assumption that mathematical relations exist between the forces and the phenomena, and that nothing short, of the discovery and formulations of these relations would constitute definitive knowledge of the subject. Progress is measured by the closeness of the approximation to this ideal formulation." (Jacob W A Young, "The Teaching of Mathematics", 1907)
"Just as data gathered by an incompetent observer are worthless - or by a biased observer, unless the bias can be measured and eliminated from the result - so also conclusions obtained from even the best data by one unacquainted with the principles of statistics must be of doubtful value." (William F White, "A Scrap-Book of Elementary Mathematics: Notes, Recreations, Essays", 1908)
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