"Speaking of Whitman, may we not affirm it is his tremendous and impassioned philosophy suffusing his work, as the blood suffuses the body, that keeps `Leaves of Grass' forever fresh? We do not go to Whitman for pretty flowers of poesy, although they are there, but we go to him for his attitude toward life and the universe, we go to stimulate and fortify our souls--in short, for his cosmic philosophy incarnated in a man."