I learned early that the richness of life is found in adventure. Adventure calls on all the faculties of mind and spirit. It develops self-reliance and independence. Life then teems with excitement. But man is not ready for adventure unless he is rid of fear. For fear confines him and limits his scope. He stays tethered by strings of doubt and indecision and has only a small and narrow world to explore.

Nature's Justice: Writings of William O. Douglas (ed. 2000)