Neil deGrasse Tyson
Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life.
More quotes and aphorisms
You become so obsessed, and that's not a bad thing...Tell me and I forget. Teach me and I remember...The development of language is part...There are times you can't really see or even feel...If I miss anything about the sport...Intelligent or not, we all make mistakes...
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