"Who are you?" St Peter asks Einstein. "I am Albert Einstein, who discovered the Theory of relativity" "Can you prove that to me?" asks St Peter.

"Give me some chalk and a black board" says Einstein. He then draws on the board "E-Mc2" and explains the full theory of relativity and atomic energy.

"Welcome to Heaven Albert Eintein!" says St. Peter.

Addressing Picasso, St Peter asks: "And who are you?"

"I am Picasso, the great cubistic artist", says Picasso. "Can you prove that to me?" aks St. Peter.

"Give me that chalk and board" says Picasso; and he draws a beautiful cubistic picture on the black board.

"Welcome to heaven Picasso" says St Peter.

"And who are you?" asks St Peter to GW Bush.

"I am the President of the United States" says Bush.

"Can you prove that to me tht you are GW Bush, President of the United States the way Einstein and Picasso proved to me who they are?" asks St. Peter.

"Who is Einstein and Picasso?" asks Bush.