Wittgenstein
...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. [1]
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 sister's new house in Vienna. However, in 1929, he returned to Cambridge and took a teaching position there, subsequently revising some of his earlier work. His development of a new philosophical method and a new understanding of language culminated in his second magnum opus, the Philosophical Investigations, which was published posthumously.
Wittgenstein's early work was deeply influenced by Russell's work on logic, by his earlier brief study with the German logician Gottlob Frege, and by Arthur Schopenhauer. When the Tractatus was published, it was taken up as a major influence by the Vienna Circle positivists. However, Wittgenstein did not consider himself part of that school and alleged that logical positivism involved grave misunderstandings of the Tractatus.
Both his early and later work have been major influences in the development of analytic philosophy, especially in the philosophy of language, the philosophy of mind, and action theory. Former students and colleagues who carried on Wittgenstein's methods included...
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