Every philosophy is tinged with the coloring of some secret imaginative background, which never emerges explicitly into its train of reasoning.
Alfred North Whitehead, OM (February 15, 1861 December 30, 1947) was a British mathematician who evolved into a philosopher. He was born in Ramsgate, Kent, UK, and died in Cambridge, Massachusetts, USA. He wrote on algebra, logic, foundations of mathematics, philosophy of science, physics, metaphysics, and education. He is the coauthor, along with Bertrand Russell, of the epochal Principia Mathematica.