Alfred North Whitehead (1861-1947) has made an enormous impact upon
philosophical thinking. His work continues to fascinate, and
occasionally to exasperate, Whitehead's 'Principia Mathematica' (jointly
offered with Russell) is crucial to an understanding of recent
philosophy of logic and of mathematics. Whitehead's metaphysics has
proved formidably difficult yet stimulating. With his ideas on God he
fathered a major school of modern theology.