*This  is  a  Lesson  in  Life.*
A wise man sat in an audience. He cracked a joke & people started to laugh like crazy. After a moment, he repeated the same joke. This time, less people laughed. He said the same joke over and over again, and when there was no laughter in the crowd, he smiled & said this; "If you don't laugh at the same joke again and again, why do you keep crying over the same thing over and over again?"