“ A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being? ”
Carl Sagan, Pale Blue Dot (1994). copy citation
Author | Carl Sagan |
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Source | Pale Blue Dot |
Topic | humanity value earth |
Date | 1994 |
Language | English |
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Note | |
Weblink |