“It has never been in my power to study anything, — mathematics, ethics, metaphysics, gravitation, thermodynamics, optics, chemistry, comparative anatomy, astronomy, psychology, phonetics, economics, the history of science, whist, men and women, wine, metrology, except as a study of semeiotic.”

Source: Quotes of Salvador Dali, 1961 - 1970, Diary of a Genius (1964), p. 81

Introduction
Higher Mathematics for Chemical Students (1911)
Context: The philosopher Comte has made the statement that chemistry is a non-mathematical science. He also told us that astronomy had reached a stage when further progress was impossible. These remarks, coming after Dalton's atomic theory, and just before Guldberg and Waage were to lay the foundations of chemical dynamics, Kirchhoff to discover the reversal of lines in the solar spectrum, serve but to emphasize the folly of having "recourse to farfetched and abstracted Ratiocination," and should teach us to be "very far from the litigious humour of loving to wrangle about words or terms or notions as empty".

A Study in English Metrics Alfred Knopf New York 1918.

Source: Economics after the crisis : objectives and means (2012), Ch. 2 : Financial Markets: Efficiency, Stability, and Income Distribution

Source: Mathematical Thought from Ancient to Modern Times (1972), p. 495

From the essay "Toward a Theory of Moral Development," published in the anthology The Next Fifty Years: Science in the First Half of the Twenty-First Century, edited by John Brockman

Source: The Dervish House (2010), Ch. 2, §8 (p. 72)

Source: Sex, Art and American Culture : New Essays (1992), Junk Bonds and Corporate Raiders : Academe in the Hour of the Wolf, p. 242

Source: Motivation and Personality (1954), p. 234.