Carl Sagan Quotes
The idea that God is an oversized white male with a flowing beard who sits in the sky and tallies the fall of every sparrow is ludicrous. But if by God one means the set of physical laws that govern the universe, then clearly there is such a God. This God is emotionally unsatisfying... it does not make much sense to pray to the law of gravity.
Carl Sagan, 1934–1996, Scientist, Quoted in http://atheism.about.com/library/quotes/bl_q_CSagan.htm
Sourced by: Eigen's Political and Historical Quotations
When the priest died, 3 handwritten manuscripts were found written and signed by him in which he attacked religion in general and the church and the Bible in particular. His Testament was read by Voltaire and Denis Diderot among others and he was very influential in their development as opponents of organized religion. This quotation has been one of the bases of secular humanism which would then develop after he had died.
Carl Edward Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages intended to be understood by any extraterrestrial intelligence that might find them.