II. Oswald Spengler I

Now in setting forth these things Spengler develops an extraordinarily curious idea; namely, that in reality the whole spiritual civilization of man depends upon the eye, that it is really only distilled from the light-world, and concepts are only somewhat refined, somewhat distilled, visions in the light, which are transmitted through the eye. Oswald Spengler simply has no idea that thinking, when it is pure thought, not only receives the light-world of the eye, but unites this light-world with the whole man. It is an entirely different matter whether we think of an entity which is connected with the perception of the eye, or speak of conceptions or mental pictures. Spengler has something to say also about conceptions, or mental pictures ( Vorstellen); but at this very point he tries to prove that thinking is only a sort of brain-dream and rarified light-world in man.