From 1929 until his death in 1951, Wittgenstein worked out a new way of doing philosophy that has no precedent in the history of the subject. It is a way of approaching philosophy that tries to remain faithful to the insight he had in the Tractatus that philosophy cannot be a science, or anything like a science. It is not a body of doctrine but an activity, the activity of clearing up the confusions caused by the bewitchments cast by language. This conception of the subject is, in my opinion, Wittgenstein’s most radical and most important contribution to philosophy.
