Lecture II

Of course, people talk about seeing, or about the eye, or about the sense of sight; but one who sees through these things knows that all the concepts that are used are somehow conjured from the sense of touch to the sense of sight. People work with things that are borrowed, smuggled in, from the sense of touch. People do not notice it, but in describing the sense of sight they make use of categories, of ideas, with which one grasps the sense of touch. What to-day is called sight in scientific circles is really only a somewhat complicated touching; and categories, concepts such as tasting or smelling, are sometimes brought in to help. We can see everywhere at work the way of grasping external phenomena which lies behind modern ideas. For modern anatomy and physiology have already discovered—or at any rate have a well-founded hypothesis—that modern thinking really has its roots in the sense of smell, in that thinking is bound up with the brain—thus not at all with the higher senses, but with a metamorphosis of the sense of smell. This characteristic attitude of ours in our grasp of the outer world is quite different from the relationship that Plato had. It is not a product of the higher senses, it is a product of the sense of smell, if I may put it so. I mean that to-day our perfection as man does not come from our having developed the higher senses, but from our having created for ourselves a modified, metamorphosed dog's muzzle.