(February 15, 1861–December 30, 1947), was a British philosopher and mathematician. He was appointed to teach at Trinity College, Cambridge, 1910; University College, London, 1911; professor of applied mathematics at the Imperial College of Science and Technology, 1914; and professor of philosophy at Harvard University, 1924. His works include: Principia Mathematica 1910–13; Principles of Natural Knowledge 1919; and The Concept of Nature. In Science and the Modern World, 1925, chapter 12, Alfred North Whitehead wrote:
The religious vision, and its history of persistent expansion, is our one ground for optimism. Apart from it, human life is a flash of occasional enjoyments lighting up a mass of pain and misery, a bagatelle of transient experience.3054