Personally, I would be delighted if there were a life after death, especially if it permitted me to continue to learn about this world and others, if it gave me a chance to discover how history turns out. – Carl Sagan
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. – Carl Sagan
We are like butterflies who flutter for a day and think it is forever. – Carl Sagan
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism. – Carl Sagan
There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying, that even man, the fighter, who will dare torture and death in order to inflict torture and death, will be appalled, and so abandon war forever. – Thomas A. Edison