I've read, or at least read at, the Tractatus; I've read the first third of Philosophical Investigations; Clive James captures in a few words the gist of the greatest philosopher of the 20th century. I particularly appreciate that James understands the role of silence in Wittgenstein's view of the world. Language is so powerful within its range of action that we easily forget the vast world that lies beyond it. The job of modern poetry -- maybe all poetry always -- is to point toward that vast range of experience it cannot grasp. Poetry is a necessary gesture toward the world.