More quotes by Carl Sagan

"A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism."
"Somewhere, something incredible is waiting to be known."
"If it can be destroyed by the truth, it deserves to be destroyed by the truth."
"You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human fallibility."
"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."