One of the greatest examples of what walking and exercise can do is the life of Bernarr Macfadden (1868 - 1955). Internationally famous during his lifetime but almost unknown today, called the "Father of Physical Culture," he was a flamboyant personality, millionaire publisher, and life-long advocate of physical fitness, natural food, outdoor exercise, and the natural treatment of disease.
" You must take at least two hours a day to exercise; for health must not be sacrificed to learning. A strong body makes the mind strong. Walking is very important. Never think of taking a book with you. The object of walking is to relax the mind. You should therefore not permit yourself even to think while you walk; but divert yourself by the objects surrounding you. Walking is the best possible exercise. Habituate yourself to walk very far."