6. Tree of Knowledge II

The first thing, however, which is revealed with particular clearness, when we regard the whole course of human evolution, is that these sense-organs as such have to do with what we can call physical operations. On Old Saturn the first germ of the sense-organs arose as a purely physical rudiment, for the development of the human sense-organs advances by the incorporation of the physical into whatever else is forming in man, so that the sense-organs are today essentially physical organs. You will easily be able to recognize the eyes, the ears, etc., as physical organs. To be sure, the lower sense are more of a chemical nature, but nevertheless that all has to do with the physical-chemical.