VII. Are There Limits to Knowing?

Out of such a dualism has sprung the differentiation between the object of perception and the “thing-in-itself” which, through Kant, has been introduced into science and to the present day has not been expelled from it. According to our expositions, it lies in the nature of our spiritual organization that a particular thing can be given only as a perception. Our thinking then overcomes the separateness of the thing by assigning to each perception its lawful place within the world whole. As long as the separated parts of the world whole are designated as perceptions, we are simply following, in this separating out, a law of our subjectivity. But if we consider the sum total of all perceptions to be one part, and then place over against this part a second one in the “things-in-themselves,” we are philosophizing off into the blue. Then we are merely playing with concepts. We are constructing an artificial polarity, but cannot gain any content for the second part of it, because such a content for a particular thing can be drawn only from perception.