“ What is applied mathematics? An acceptable answer might be: mathematics in the service of matters that are exterior to mathematics itself. In that service, the question of logical proof or truth or finality is not really an issue; what matters is utility or significance, in some shape or form, to a sufficiently large group of people. With this criterion in mind, one can assert that Cardano's astrology constituted a non-negligible chapter in the history of applied mathematics. ”
by Philip J. Davis, in review of the book: Cardano's Cosmos: The Worlds and Works of a Renaissance Astrologer, by Anthony Grafton, Harvard University Press, 1999, 352 pages

“ Dieu lui-même croit à la publicité : il a mis des cloches dans les églises. ”
by Sacha Guitry

“ Only passions, great passions, can elevate the soul to great things. ”
by Denis Diderot (1713 - 1784)