There is a Chinese symbol of philosophers carrying on their shoulders peaches, which means that the object of life is to be fruitful. However good or spiritual a person may be, yet, if his life is not fruit-giving, he has not fulfilled the purpose of life. A person whose life becomes fruitful does not only bear fruit to others, but every aspect of life bears fruit to him as well; for him life becomes a fruit. If life were only for what people call goodness, life would be very uninteresting. For goodness is dependent for its beauty on badness. As a form cannot exist without a shadow so goodness cannot be without badness.