Ludwig Wittgenstein (1889-1951) was born in Austria and studied at Cambridge under Bertrand Russell. He volunteered to serve in the Austrian army at the outbreak of World War I, and in 1918 was captured and sent to a prison camp in Italy, where he finished his masterpiece, Tractatus Logico-Philosophicus, one of the most important philosophical works of all time. After the war Wittgenstein eventually returned to Cambridge to teach.
BERTRAND RUSSELL (1872-1970), a UK-born mathematician, philosopher, and Noble Prize-winner, is regarded as the founder of modern logic. Russell conceived with Alfred North Whitehead a mathematical system of logic based on an abstract analysis of thought. His fights for pacifism and conscientious objection lead him to several stints in prison and frequently interfered with his professional career; however, it also lead to the creation with Jean-Paul Sartre of the International Court against war crimes.
Ogden was educated at Magdalene College, Cambridge. He was inventor of the Basic English system, an 850-word vocabulary designed to be an international language.
