Lecture I

With regard to these two questions, then—What is matter? How does consciousness arise out of material processes?—du Bois-Reymond maintains that as researchers we must confess: ignorabimus, we shall never know. That is the modern counterpart to medieval Scholasticism. Medieval Scholasticism stood at the limit of the super-sensible world. Modern natural science stands at the limit delineated in essence by two concepts: “matter,” which is everywhere assumed within the sensory realm but nowhere to be found, and “consciousness,” which is assumed to originate within the sense world, although one can never comprehend how.