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Extraterrestrials Quotes

A time will come when men will stretch out their eyes. They should see planets like our Earth.

[O]ver the years I travelled to another universe. However alert we are, however much we think we kno...

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I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

Even if the aliens are short, dour, and sexually obsessed—if they’re here, I want to know about them...

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Picture of Carl Sagan
Carl SaganThe Demon-Haunted World: Science as a Candle in the Dark