If you wish to make an apple pie from scratch, you must first invent the universe.
—Carl Sagan in Cosmos
Human beings have a demonstrated talent for self-deception when their emotions are stirred.
—Carl Sagan in Cosmos
We are like butterflies who flutter for a day and think it's forever.
—Carl Sagan in Cosmos
Imagination will often carry us to worlds that never were. But without it we go nowhere.
—Carl Sagan in Cosmos