A good heart is both important and effective in daily life. If in a small family, even without children, the members have a warm heart for each other, a peaceful atmosphere will be created. However, if one of the persons feels angry, immediately the atmosphere in the house becomes tense. Despite good food or a nice television set, you will lose peace and calm. Thus things depend more on the mind than on matter. Matter is important, we must have it. We must use it properly, but in this century we must combine a good brain with a good heart.