Stephen Hawking is a person who spoke about the black holes in universe.Stephen Hawking is a person who showed the results of his work in a math model about "Relativity Theory".Stephen Hawking is a person who started a new line of research in quantum theory of the origin of the universe.Stephen Hawking is a person who told "One can not argue with a mathematical theorem."Stephen Hawking is a person whi told "The human race needs an intellectual challenge. It must be boring to be God, and have nothing to discover. "Stephen Hawking is a person who told "The people peaceful and quiet are those with the strongest minds and noisy."Stephen Hawking is a person who wrote extensively about quantum gravity.