More quotes by Carl Sagan

"Extraordinary claims require extraordinary evidence."
"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."
"Somewhere, something incredible is waiting to be known."
"Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question the conventional wisdom."
"It's a lazy Saturday afternoon, there's a couple lying naked in bed reading Encyclopediea Brittannica to each other, and arguing about whether the Andromeda Galaxy is more 'numinous' than the Ressurection. Do they know how to have a good time, or don't they?"