Fritz Mauthner (22 November 1849 – 29 June 1923) was an Austrian philosopher and author of novels, satires, reviews and journalistic works. He was an exponent of philosophical scepticism derived from a critique of human knowledge and of philosophy of language. He became editor of the Berliner Tageblatt in 1895, but is remembered mainly for his Beiträge zu einer Kritik der Sprache (Contributions to a Critique of Language), published in three parts in 1901 and 1902. Ludwig Wittgenstein took several of his ideas from Mauthner, and acknowledges him in his Tractatus Logico-Philosophicus (1922). Source: Wikipedia (en)