Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense. – Carl Sagan
Imagination will often carry us to worlds that never were. But without it we go nowhere. – Carl Sagan

Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense. – Carl Sagan
Imagination will often carry us to worlds that never were. But without it we go nowhere. – Carl Sagan
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. – Carl Sagan
The universe is not required to be in perfect harmony with human ambition. – Carl Sagan