"I’ve got my theories. My theory is that a vigorous, free, outdoors life is good for people. It fills them with cheer and high spirits, leading to health and a long life. Despite the claims of medical technicians such as Lewis Thomas, official spokesman for the cancer industry, it is not more and newer drugs we need, not better living through chemotherapy, but rather clean air. Clean water. Good fresh real food. And plenty of self-directed physical activity."