Never Forget Your Past. It's Your Best Teacher:

BILL GATES in a restaurant.

  After eating, he gave 5$ to the waiter as a tip.
The waiter had a strange feeling on his face after the tip.
Gates realized & asked.What happened?

Waiter: I'm just amazed Because on the same table your son gave Tip Of... 500$...& u his Father, richest man in the world Only Gave 5$...?

Gates Smiled & Replied With Meaningful words:

"He is Son of the world's richest man, but i am the son of a
 retired American attorney(Lawyer)..."