So Picasso gets to heavens door where Saint Peter is there to greet him; "hello and who might you be?"
"I am Picasso the wonderful and surrealistic painter of the twentieth century who brought great joy to many people with his art."
"Ah", says Peter, "anybody can say that. I am afraid you'll need to prove it."
He gives Picasso some paints and all the stuff and within no-time Picasso has painted a briliant masterpiece.
"Welcome Picasso and enjoy your time here."
Next Bertrand Russel arriv?s and meets Peter.
"Hello and who might you be?"
"I am Betrand Russel the great philospher and thinker who brought sound reasoning and great thoughts to the lives of many people."
"Ah" says Peter "anyone can say he is Betrand Russel, you will need to prove it."
So Bertrand holds a splendid and thorougly thought-provoking resume of the entire history of philosphy with stunning excellence.
"Welcome my son and enjoy your time in heaven."
Next George Bush arrives.
"Hello and who might you be?"
"I am George Bush and I did lots of important things on earth."
"Ah well anyone can say they are George Bush. You will need to prove it. Picasso had to prove it and Bertrand Russel."
"Who the hell is this Picasso and this Bertrand Russel guy???" says George.
Welcome my son and enjoy your time in heaven??.