Unfortunately, this review of a new photo-essay collection on the life and times of the notorious genius Ludwig Wittgenstein is paywalled. Still, an excerpt can stand in for the whole thing:
After the war, Wittgenstein saw through the publication of Tractatus Logico-Philosophicus and then abandoned philosophy, all problems of which he considered himself to have solved. His conviction on this point rested on his view that all philosophical problems arose out of misconceptions about the nature of logic and language. In giving clear and correct answers to the questions “what is logic?” and “what is a proposition?,” then, he regarded himself as having answered once and for all philosophical questions. He thus gave up philosophy in favor of teaching in elementary schools in Lower Austria. Between 1922 and 1926 Wittgenstein taught in three different rural villages and was regarded as rather weird in all of them.