Fable 185 - The Dog Who Carried the Meat

A dog was crossing a river holding a piece of meat in his mouth. Catching sight of his reflection in the water, he believed that it was
another dog who was holding a bigger piece of meat. So, dropping his own piece, he leaped into the water to take the piece from
the other dog. But the result was that he ended up with neither piece - one didn’t even exist and the other was swept away by the current.

This fable applies to the covetous.