More quotes by Carl Sagan

"A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism."
"If it can be destroyed by the truth, it deserves to be destroyed by the truth."
"I don't want to believe. I want to know."
"[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."
"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."