“The present book is not a methodology of mathematics in the sense that I will systematically show how some teaching matter should taught; it is not even a systematic analysis of subject matter. I hardly ever refer to well-organized classroom experiments evaluated by statistical methods, nor do I cite experimental results of developmental psychology or the psychology of learning. Maybe the most striking feature is that this book contains few quotations. I will try to justify all these features.”

Source: Mathematics as an Educational Task (1973), p. v;As cited in: Ben Wilbrink (2013)

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Hans Freudenthal27

Dutch mathematician 1905–1990

Kenneth E. Boulding (1910–1993) British-American economist

Source: 1940s, Economic Analysis, 1941, p. xv

“The experimental psychologist… needs historical sophistication within his own sphere of expertness. Without such knowledge he sees the present in distorted perspective, he mistakes old facts and old views for new, and he remains unable to evaluate the significance of new movements and methods. In this matter I can hardly state my faith too strongly. A psychological sophistication that contains no component of historical orientation seems to me to be no sophistication at all.”

Edwin Boring (1886–1968) American psychologist

Source: A History of Experimental Psychology, 1929, p. ix; As cited in: Baldwin R. Hergenhahn (2008). An Introduction to the History of Psychology. p. 5

“My purpose in this paper is to highlight some of the central ideas contained in Heider's theory, to present them in a systematic way, and to show their relevance to developments in several central fields of contemporary social psychology.”

Harold Kelley (1921–2003) American psychologist & academic

Source: "Attribution theory in social psychology." 1967, p. 192

“I scarcely believe that in psychology data are present which can be mathematically evaluated. But one cannot know this with certainty, without having made the experiment. God alone is in possession of the mathematical bases of psychic phenomena.”

Carl Friedrich Gauss (1777–1855) German mathematician and physical scientist

As quoted in Carl Friedrich Gauss: Titan of Science (1955) by Guy Waldo Dunnington. p. 306

“The great books … afford us the best examples of man's efforts to seek the truth, both about the nature of things and about human conduct, by methods other than those of experimental science; and because these examples are presented in the context of equally striking examples of man's efforts to learn by experiment … the great books provide us with the best materials for judging whether the experimental method is or is not the only acceptable method of inquiry into all things.”

Robert Maynard Hutchins (1899–1977) philosopher and university president

Great Books: The Foundation of a Liberal Education (1954)

“Knowing what I do about Judaism, I was naturally distressed to see that you have erroneously featured me as a Jew
.. I am not today, nor have I ever been a Jew, and as a matter of fact, I am uncircumcised.”

Bobby Fischer (1943–2008) American chess prodigy, chess player, and chess writer

1980s, 1984 letter to Encyclopedia Judaica <br class="br">Source: from 1st paragraph, verified page 137 of "White King and Red Queen: How the Cold War was Fought on the Chessboard" by Daniel Johnson, published 2008 https://books.google.ca/books?id=7Lzd7SaQA_YC&pg=PA137