Once upon a time in a hot summer day, a big Ox came down a pond to drink some water. He was thirsty and when he was about to enter the pond he crushed a young little frog into the mud. The younger one died.
All the small frogs rushed to the big old frog to tell him that their younger brother died by a big animal. On knowing this, the big frog said ”Big, was he!” and started blowing himself up. He asked the young frogs, ”Was he as big as this”, to which they replied “Much bigger”.
He puffed himself more and more and kept asking the little frogs the same question. When they declared that the Ox was much bigger, he blew and blew and swelled and swelled. Until finally, he burst.
Moral: Self-conceit leads to self-destruction.