Aesop
The Lion, the Bear, and the Fox
A LION and a Bear seized a Kid at the same moment, and fought
fiercely for its possession. When they had fearfully lacerated
each other and were faint from the long combat, they lay down
exhausted with fatigue. A Fox, who had gone round them at a
distance several times, saw them both stretched on the ground
with the Kid lying untouched in the middle. He ran in between
them, and seizing the Kid scampered off as fast as he could. The
Lion and the Bear saw him, but not being able to get up, said,
"Woe be to us, that we should have fought and belabored ourselves
only to serve the turn of a Fox."

It sometimes happens that one man has all the toil, and another
all the profit.