Ludwig Wittgenstein probably was, through his Tractatus Logico Philosophicus and his later work in Cambridge, the most important and influential philosopher Austria produced. His logical positivism was crucial for the Vienna Circle in the nineteen twenties and thirties, and he was one of the philosophers to trigger the linguistic turn even after his death. Through the salon of his parents, Wittgenstein was connected to many of the most important Austrian cultural personalities of his time. Apart from philosopher, he was among others also a primary school teacher, an artist and an architect – reflecting and writing on these subjects as well. As an important representative of the Austrian language skepticism, that more artistic work was driven by the idea of non-verbal communication as in the gesture.