People were coming to the wise man, every time complaining about the same problems. One day he told them a joke and everyone roared in laughter. After a couple of minutes he told them the same joke and only a few of them smiled. When he told the same joke for the third time no one laughed anymore.
The wise man smiled and said:
“You can’t laugh at the same joke over and over. So why are you always crying about the same problem?”