Although the work is considered one of the greatest achievements in philosophy, it’s really not clear. Wittgenstein’s stated intention was to address the problems of philosophy that had preoccupied Gottlob Frege (1848–1925) and Bertrand Russell (1872–1970)—Arthur Schopenhauer (1788–1860) was another influence on the work—although he said at the end of this work: “My propositions serve as elucidations in the following way: anyone who understands me eventually recognizes them as nonsensical.” At the beginning of the book, Wittgenstein claims that his main purpose is ethical.