Darija, 21, Beograd
"A Russian cosmonaut and a Russian brain surgeon were once discussing Christianity. The brain surgeon was a Christian, but the cosmonaut wasn’t. "I have been in outer space many times," bragged the cosmonaut, "but I have never seen any angels." The brain surgeon stared in amazement, but then he said, "And I have operated on many intelligent brains, but I have never seen a single thought."