Ludwig Wittgenstein (1889 - 1951)

Ludwig Josef Johann Wittgenstein (26 April 1889 – 29 April 1951) was an Austrian-British philosopher who worked primarily in logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language. From 1939 till 1947 Wittgenstein taught at the University of Cambridge. All he published in his lifetime was one book review, one article, a children's dictionary, and the 75-page Tractatus Logico-Philosophicus (1921).