xviii. The Fourfold Man of Earth

Other organs are in an ascending development; they contain much which now is only present in a germinal state, as it were: in future they will develop into more perfect forms with a higher function. Among the former organs belong, for instance, those which serve for reproduction, for the bringing into existence of like beings. In future their function will pass to other organs and they themselves will sink into insignificance. There will come a time when they will be present on the human body in an atrophied condition, and one will then have to regard them only as evidences of the preceding development of man.