Science Fair Project Encyclopedia Ludwig Josef Johann
Wittgenstein [IPA] (April 26, 1889 – April 29, 1951) was an
Austrian philosopher who contributed several groundbreaking
works to modern philosophy, primarily on the foundations of
logic and the philosophy of language. He is widely regarded as
one of the most influential philosophers of the 20th century ,
though some argue that his influence was confined largely to
analytic philosophy. Although numerous collections from
Wittgenstein's notebooks, papers, and lectures have been
published since his death, he published only one philosophical
book in his own lifetime — the Tractatus Logico-Philosophicus in
1921, while studying at Trinity College, Cambridge, under the
supervision of the philosopher Bertrand Russell. With the
completion of the Tractatus, for which he was awarded a Ph.D.,
Wittgenstein believed he had solved all the problems of
philosophy, and he abandoned his studies, working as a
schoolteacher, a gardener at a monastery, and an architect on
his si