Life has a jarring effect by its very nature which every sensitive soul can feel. If a person wishes to keep away from all jarring influences, he had better not try to live, for life is a constant jarring. Life is motion, and it is the nature of motion to strike against something. It does not require strength to stand against the jarring influences of life -- there is no wall of stone or of iron that can always stand against the waves of the ocean -- but a small piece of wood, little and light, can always rise and fall with the waves, yet always above them, uninjured and safe. The lighter and the littler man's ego becomes the more power of endurance he has. It is two strong egos that strike against one another. The little ego, the light ego, just slips over when a powerful wave of a strong ego comes for it to knock over itself against a stronger wall that may throw it over.