While walking through the woods, the fox saw a vine full of grapes hanging on a branch of a tree. The fox's mouth watered. But the grapes hung from a high branch and the fox had to jump for it. It jumped to reach the grapes, but could not. It tried several times but could not reach the grapes. At last, the fox was fed up and it gave up. The fox walked away saying, "Anyway, those grapes are sour."

Insight: People often despise things that they cannot achieve.