"One reason why so many people are unhappy, not knowing why, is that they have burdened their minds with resentments. These evil thoughts pile right on top of happier and generous ones and smother them so that they never get expression. Resentments are a form of hate.... What a dearth of good will and co-operation there are among human beings and nations! What a world this would be if we all worked together, and as a popular diplomat recently expressed it-played together!"