Abstract
Three claims wittgenstein makes in the tractatus are explicated via schopenhauer's idealism: 1) ethical reward and punishment lie in the action itself, 2) the good or bad exercise of the will alter the world's limits, So that it waxes or wanes, 3) eternal life belongs to those who live in the present. Schopenhauer's theory fills out some of wittgenstein's statements. For example, The happy man's world waxes to the degree that he frees himself from the false perspective of the "principium individuationis". However, The link between schopenhauer's metaphysics and his ethics is tighter than the analogous link in wittgenstein