After full acceptance of the materialistic theory, one still feels he has a certain confidence, he knows the truth. Is not the holding of confidence equivalent to saying, The world will fulfill my expectation? The materialist is certain that the world will not disappoint him. Here he steps outside his theory, because, according to it, his confidence is an illusion. But he believes in having a confidence and in knowing certain things. This his doctrine contradicts. Materialism is self contradictory. Any theorist to be consistent must find a place for himself in the world of his creation. He is more than an on looker; he is a participant.