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
You have to think a little smarter...I think about making a comeback every single day...When you make a mistake and the devil comes...Kind words do not cost much...Thanksgiving is one of my favorite days of the year...Because you are women, people will force...
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