"The realization of our soul has its moral and its spiritual side. The moral side represents training of unselfishness, control of desire; the spiritual side represents sympathy and love. They should be taken together and never separated. The cultivation of the merely moral side of our nature leads us to the dark region of narrowness and hardness of heart, to the intolerant arrogance of goodness; and the cultivation of the merely spiritual side of our nature leads us to a still darker region of revelry in intemperance of imagination."