Do not tell lies
A sailor and a soldier became good friends. One day, they sat on the seashore and talked about their fathers’ greatness. First, the soldier said, “My father is a great engineer. Have you heard about the Aravali range? My father has built that.” Now it was the turn of the sailor. He said, “My father was a great warrior. Have you heard about the Dead Sea?” “Yes,” said the soldier. “It was killed by my father,” said the sailor.
Moral: Do not tell lies.