The Austrian Ludwig Wittgenstein (1889–1951) was one of the greatest philosophers of the 20th century. His two major works, Tractatus Logico-Philosophicus and Philosophical Investigations, have made him a leading figure in logic and philosophy of language.
In 1913 he left academic life in Cambridge in order to be able to concentrate on his philosophical work. His travels ended up in Norway at Skjolden, at the far end of Sognefjorden.
Stanford Encyclopedia of Philosophy