"The basic cause of all our difficulties is immaturity. That's why I talk so much about peace within ourselves as a step toward peace in our world. If we were mature, war would not be possible and peace would be assured. In our immaturity we do not know the laws of the universe, and we think evil can be overcome by more evil. One symptom of our immaturity is greed, making it difficult for us to learn the simple lesson of sharing."