The Cock and the Jewel

A COCK, scratching for food for himself and his hens, found a
precious stone and exclaimed: "If your owner had found thee, and
not I, he would have taken thee up, and have set thee in thy
first estate; but I have found thee for no purpose. I would
rather have one barleycorn than all the jewels in the world." The ignorant despise what is precious only because they cannot understand it. - Aesop

[Source: Aesopfables.com]