Lecture X

We must be quite clear about the fact that what we now recognise as man is a product of that long cosmic evolution which I have always synthesized as the Saturn-Sun-Moon-and-Earth-evolution. The Earth-evolution is not yet completed. But let us be clear about what man owes to this Earth-evolution in the narrower sense, to the epoch, that is to say, which is subsequent to the evolution of old Moon. You see, when you move your arms and stretch them out, when you move your fingers, when you carry out any kind of external movement, everything in your organism which enables you to move your arms and legs, your head, your lips, and so on—and the forces upon which man's external movements depend enter into the most inward parts of the human organism—all this was vouchsafed to man by Earth-evolution in the narrower sense. If, on the other hand, you look into everything connected with the development of the metabolism, which is enclosed by man's outer skin, if you look at all the metabolic functions within the physical body, here you have a picture of what man owes to the Moon-evolution. And you have a picture of what man owes to the old Sun-evolution when you look into everything within him which involves some kind of rhythmic process. Breathing and blood-circulation are of course the most important of these rhythmic processes, and these man owes to the old Sun-evolution. Everything comprised in the system of nerves and senses, which in men of today is distributed over the whole body, this man owes to the old Saturn-evolution.