বায়োগ্রাফি : Ludwig Josef Johann Wittgenstein was born in one of the richest families in Europe and inherited a fortune from his father in 1913. At first, he donated his inheritance among artists and writers, after that among his siblings and joined WWI he was decorated a number of times for his courage. He went to Cambridge and his teacher, Bertrand Russell, described Wittgenstein as "perhaps the most perfect example I have ever known of genius as traditionally conceived; passionate, profound, intense, and dominating". during World War II in London, he worked as a hospital porter, where he told patients not to take the drugs they were prescribed while largely managing to keep secret the fact that he was one of the world's most famous philosophers. He described philosophy as "the only work that gives me real satisfaction".