Quotes by Carl Sagan

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.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.