This is the secret of all harmony in life, the harmony of the creative and responsive forces. In life, we meet some people who are creative. Then, if we do not respond, we have failed. We meet some people who are responsive. Then, if we do not create, we have not performed our part. If there are two creative together, it is bad; if there are two responsive, it will not be good. Man and woman can harmonize, but if two women spend their life together, they will quarrel; if two men live together, they will fight. This is the reason of the present war. Two responsive together is bad, but two creative together is worse.