Wittgenstein, according to Elizabeth Anscombe (one of his students), was impressed by Schopenhauer as a young man; given Schopenhauer is known for asserting
The world is my idea:”—this is a truth which holds good for everything that lives and knows, though man alone can bring it into reflective and abstract consciousness
how does this square with the proposition 6.53 of the Tractatus which asserts:
The right method of philosophy would be this: To say nothing except what can be said, i.e. the propositions of natural science, i.e. something that has nothing to do with philosophy: and then always, when someone else wished to say something metaphysical, to demonstrate to him that he had given no meaning to certain signs in his propositions. This method would be unsatisfying to the other -- he would not have the feeling that we were teaching him philosophy -- but it would be the only strictly correct method.
Had Wittgenstein moved away from his earlier fascination with Schopenhauer when he came to write the Tractatus; or was it the process of thinking through the Tractatus that moved him away - if indeed he had?