15. The Theory of Categories

All speaking about the world must be permeated by those concepts which receive their contours through the inner texture (Gefuge), the organic edifice (Bau) of the whole world of concepts. We can still go on, ascend of even richer concepts. We could say: Wesen is the Sein which is in itself, which in itself has come to itself, which can manifest itself. If now this Sein not only manifests itself, but furthermore still extends its lines (Linien) to the environment, and is thus capable of expressing something yet different we arrive at the concept of BEGRIFF (concept) itself. We have our Wesen in us; it works (arbeitet) in us. But when we cause the concept to work in us then we have something in us that points outwards which embraces the outer world.[^6] Accordingly we can ascend from Wesen, Erscheinung, and Wirklichleit to BEGRIFF. We now have the concept in us, and we have seen in formal logic how the concept works in the conclusion. There the concept remains within itself. But now the concept can go out. Then we are speaking of a concept which gives back the nature (Natur) of the things. We there come to true OBJECTIVITY. In the contrast to the subjectively working concept, we come here to objectivity. As appearance (ERSCHEINUNG) relates itself to the WESEN, so objectivity to the concept. And one has only rightly apprehended the concept of objectivity when it has taken place in this way. If we now connect BEGRIFF—concept—and OBJECTIVITY, we come to the IDEE, the idea, which is at one and the same time objective appearance and contains the subjective within itself.