Abstract

Schopenhauer was the first and greatest philosophical influence on Wittgenstein, a fact attested to by those closest to him. He began by accepting Schopenhauer's division of total reality into phenomenal and noumenal, and offered a new analysis of the phenomenal in his first book, the Tractatus Logico‐Philosophicus. The Logical Positivists, who believed that only the phenomenal existed, took this as the paradigm for their philosophy. Wittgenstein, however, moved away from it and proposed a new and different analysis in his book Philosophical Investigations, and this became the most influential text in linguistic philosophy. Thus, Wittgenstein produced two different philosophies, each of which influenced a whole generation that remained largely oblivious of its Schopenhauerian origins.