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
Let us be grateful to people who make us happy...I don't design clothes, I design dreams...The body of a beautiful woman is not made for love...Love does not dominate; it cultivates...Your job is not just to do what your parents say...Diversity: the art of thinking independently together...
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