Carl Sagan
No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.
More quotes and aphorisms
Thinking is my hobby. But sometimes you get...What had begun as a movement to free all black people...I have no attention span. I get bored so fast...The over-all point is that new technology will...A tree is known by its fruit...Remorse: beholding heaven and feeling hell...
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