Wittgenstein, much like Duchamp in the arts, has contributed more by contributing nothing of solidity. He has proffered nothing but the most critical eye, on an outstretched hand, and asked us to perform the same operation.
But I want only to interject with an important story which secures Wittgenstein a place as the first punk in history, because not only did he uproot the intellectual elite of his time and also the less abrasive of his contemporary readers, but it is rumored that he and Hitler attended the same upper-level school (I think that's Gymnasium in German) and at one point they got into a fight which ended with Wittgenstein clocking Hitler in the head. Don't take my word for it, but the story somehow seems to justify a liberal arts education.