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Carl Sagan has 470 quotes on this site. A few more worth reading:

• If we say that God has always been, why not save a step and conclude that the universe has always been?
• Modern science has been a voyage into the unknown, with a lesson in humility waiting at every stop. Many passengers would rather…
• The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary…
• An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.…
• (When asked merely if they accept evolution, 45 percent of Americans say yes. The figure is 70 percent in China.) When the…
• The politicians and the religious leaders and the weapons scientists have been at it for a long time and they've made a…
• Life is but a momentary glimpse of the wonder of this astonishing universe, and it is sad to see so many dreaming…
• In many cultures it is customary to answer that God created the universe out of nothing. But this is mere temporizing. If…
• Many statements about God are confidently made by theologians on grounds that today at least sound specious. Thomas Aquinas claimed to prove…
• We should be teaching our children the scientific method and the reasons for a Bill of Rights. With it comes a certain…
• It means nothing to be open to a proposition we don't understand.
• If some good evidence for life after death were announced, I'd be eager to examine it; but it would have to be…

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