I remeber writing about a question one student asked a philosopher. The student said something like this: "You said that logical positivists and Wittgenstein are different in the way they think of what we cannot speak about. The former tried to do away with it, while the latter cherished it. But what exactly is the diference between the two?"
The philosopher answered, "It often happens you ask a question about what a teacher has said and get no clear answer. And I regret to say this is all I can give you. Wittgenstein is said to have loved reading Tolstoy."
As you can see, his answer is not at all clear. The difference is still obscure. But I came to beleive recently that when we are experienced with philosophy, we will get to speak in a similar way to his.