The Wolf and the Crane
A wolf was once chewing a large, delicious bone when all of a sudden, a chunk became lodged in his throat. He made numerous attempts to release it, but he was unable to.
A crane flew past and inquired if he needed assistance since he was coughing and choking. The wolf concurred, feeling humiliated and powerless. The crane carefully inserted her beak into the wolf's throat and extracted the bone.
In appreciation, the wolf offered to give the crane a piece of meat from his dinner as payment. The crane respectfully rejected and flew away, content with having assisted a friend in need.
The moral of the story is that we should always be helpful and nice to others, even if we don't anticipate anything in return. The satisfaction of merely knowing that we have improved someone else's life can sometimes be the greatest reward.