More quotes by Carl Sagan

"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."
"Extraordinary claims require extraordinary evidence."
"The 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."
"Somewhere, something incredible is waiting to be known."
"[When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996:]If ‘fulfilled prophecy’ is your criterion, why do you not believe in materialistic science, which has an unparalleled record of fulfilled prophecy? Consider, for example, eclipses."