The Story of the Rabbit that Got Away
A dog spotted a rabbit and started chasing him, but the rabbit got away.
Seeing this, a goat stopped to gloat at the dog.
“Too fast for you, wasn’t he?” he sneered.
“Why are you surprised?” said the dog. “I was chasing him for fun; he was running for his life.”
Moral of the story = Your performance depends on your motivation.
— a tale by Aesop