All civilizations become either spacefaring or extinct.
CARL SAGANAll civilizations become either spacefaring or extinct.
CARL SAGANThe very act of understanding is a celebration of joining, merging, even if on a very modest scale, with the magnificence of the Cosmos.
CARL SAGANThe truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.
CARL SAGANThe beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
CARL SAGANThe visions we offer our children shape the future.
CARL SAGANI would suggest that science is, at least in my part, informed worship.
CARL SAGANAll over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
CARL SAGANIf it can be destroyed by the truth, it deserves to be destroyed by the truth.
CARL SAGANAn atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
CARL SAGANWe can’t help it. Life looks for life.
CARL SAGANOther things being equal, it is better to be smart than to be stupid.
CARL SAGANExcept in pure mathematics, nothing is known for certain (although much is certainly false).
CARL SAGANWe are like butterflies who flutter for a day and think it is forever.
CARL SAGANAdvances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
CARL SAGANThe price we pay for anticipation of the future is anxiety about it.
CARL SAGANExtraordinary claims require extraordinary evidence.
CARL SAGAN