If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed.

Once upon a time, there was a wild and crazy scientist named Albert Einstein. He had wild, unruly hair and a passion for discovering new things. He liked to think outside the box and often challenged the status quo. One day, Einstein was walking down the street and noticed a sign that said "E=MC2". He thought to himself, "Hey, that looks like a cool equation. I should figure out what it means!" So, Einstein went home and got to work. After hours of hard work and lots of calculations, he finally figured out the equation. It was a revolutionary discovery that changed the world of physics forever! Einstein was proud of his accomplishment, but he still had one more trick up his sleeve. He went back to the sign and changed the equation to "E=MC3". Everyone was shocked and amazed at his genius! And that, my friends, is the story of how Albert Einstein changed the world of physics forever.