There is a hidden quality, and there is a quality which is manifest. What is manifest we recognize; what is hidden we do not see. There is going forward and there is going backward, there is success and there is failure, there is light and there is darkness, there is joy and there is sadness, there is birth and there is death. All things that we can know, feel, and perceive have their opposites. It is the opposite quality which brings about balance. The world would not exist if there were not both water and earth. Every thing and every being needs these two opposite qualities in order to exist, to act, and to fulfil the purpose of life; for each quality is incomplete without the other. No man has a complete personality if he does not have some little touch of the fineness that belongs to the female nature; woman is only complete in her character when there is some little touch of the male nature.