You must always be puzzled by mental illness. The thing I would dread most, if I became mentally ill, would be your adopting a common sense attitude; that you could take it for granted that I was deluded.
Ludwig WittgensteinThe philosophical I is not the human being, not the human body or the human soul with the psychological properties, but the metaphysical subject, the boundary (not a part) of the world.
Ludwig WittgensteinA wheel that can be turned though nothing else moves with it, is not a part of the mechanism.
Ludwig Wittgenstein