Alan Turing1912–1954Science is a differential equation. Religion is a boundary condition.
Epigram to Robin Gandy (1954); reprinted in Andrew Hodges, Alan Turing: the Enigma (Vintage edition 1992), p. 513.- “Systems of Logic Based on Ordinals,” section 11: The purpose of ordinal logics (1938), published in Proceedings of the London Mathematical Society, series 2, vol. 45 (1939)





