RESPECT THE WISDOM OF ELDERS
One upon a time there was a fat man. He had a strong hefty body- so much so that he had to struggle a lot to get through the door of his house.
One day a young boy happened to came that way and saw the man forcing himself inside the house. The boy couldn't control his laughter and said, "If you step aside for a moment, I will show you how to get in."
The man was amused to hear the words of the young boy and said; "I knew the way even before you were born."
The young boy had no words to say and realized his folly that he should not have advised the man who was quite older than him.