“To no man does the earth mean so much as to the soldier. When he presses himself down upon her long and powerfully, when he buries his face and his limbs deep in her from the fear of death by shell-fire, then she is his only friend, his brother, his mother; he stifles his terror and his cries in her silence and her security; she shelters him and releases him for ten seconds to live, to run, ten seconds of life; receives him again and again and often forever.”