Wittgenstein Ludwig
Ludwig Josef Johann Wittgenstein (Ph.D., Trinity College, Cambridge University, 1929) was an Austrian-British philosopher who worked primarily in logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language.
Described by Bertrand Russell as "the most perfect example I have ever known of genius as traditionally conceived, passionate, profound, intense, and dominating", he helped inspire two of the twentieth century's principal philosophical movements: the Vienna Circle and Oxford ordinary language philosophy. According to an end of the century poll, professional philosophers in Canada and the U.S. rank both his Tractatus Logico-Philosophicus and Philosophical Investigations among the top five most important books in twentieth-century philosophy, the latter standing out as "...the one crossover masterpiece in twentieth-century philosophy, appealing across diverse specializations and philosophical orientations". Wittgenstein's influence has been felt in nearly every field of the humanities and social sciences, yet there are widely diverging interpretations of his thought.
“If a blind man were to ask me “Have you got two hands?” I should not make sure by looking. If I were to have any doubt of it, then I don’t know why I should trust my eyes. For why shouldn’t I test my eyes by looking to find out whether I see my two hands? What is to be tested by what?”
“The philosophical I is not the man, not the human body or the human soul of which psychology treats, but the metaphysical subject, the limit -not a part of the world.[...]If by eternity is understood not endless temporal duration but timelessness, then he lives eternally who lives in the present.”
“If by eternity is understood not endless temporal duration but timelessness, then he lives eternally who lives in the present.”
“As there is only a logical necessity, so there is only a logicalimpossibility.”
“Logic is not a theory but a reflexion of the world.”
“The world is everything that is the case.”
“If we take eternity to mean not infinite temporal duration but timelessness, then eternal life belongs to those who live in the present.”