After eating, he gave $5 to the waiter as a tip. The waiter had a strange look on his face after the tip, Gates realized, and asked the waiter what had happened.
The waiter replied, "I'm just amazed because on the same table your son gave a tip of $500, but you, his father, the richest man in the world, only gave me $5."
Gates smiled and replied with meaningful words: "He is Son of the world's richest man, but I am the son of a wood cutter..." (Never Forget Your Past. It's Your Best Teacher)
