Imagination will often carry us to worlds that never were. But without it we go nowhere. – Carl Sagan
We are like butterflies who flutter for a day and think it is forever. – Carl Sagan

Imagination will often carry us to worlds that never were. But without it we go nowhere. – 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
If you wish to make an apple pie truly from scratch, you must first invent the universe. – Carl Sagan