nice e-mail i recieved in recent times

A boy and a girl were playing together. The boy had a collection of marbles.Thegirl had some sweets with her. The boy told the girl that he will give her all his marbles in exchange for her sweets. The girl agreed. The boy kept the biggest and the most beautiful marble aside and gave the rest to the girl. The girl gave him all her sweets as she had promised. That night, the girl slept peacefully.