I. Free Will, Immortality

Man is a complicated being. If we are to apply the idea of evolution to the human being and really penetrate the real mysteries of his nature, we must apply the idea of evolution to the human organism, as the latter appears to our everyday senses, quite differently from the somewhat oversimplified approach attempted by science until now. For in dealing with the human being we have to differentiate between different parts—the head with the senses and the nervous system (for simplicity's sake I call it the head organism), the more central organism connected with the breast and abdominal regions, and the third, consisting of what takes place at the periphery of man's body. Anyone who has seen a human skeleton will know that what is expressed so differently from animals in the formation of man's extremities, his arms and hands, his legs and feet, is not only different in its outward expression, but this differentiation is also continued on a more inner level.