The moral of story of Greedy Dog Story is “One who Grasp all, lose all”.
One day a dog stole a piece of meat from a butcher’s shop and ran away.
On his way there was a stream. There was a plank across the stream. When the dog came to the middle of the plank, he looked down into the water. There he saw his own shadow. He thought that it was another dog with a bigger piece of meat in his mouth.
I must have that piece also,” thought the greedy dog.
So thinking, the dog barked and jumped into the water. His own piece of meat at once fell down into the water and was lost.
Moral: Grasp all, lose all.