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
Being an old maid is like death by drowning...Well, excuuuuuse me...The secret of a happy marriage is finding the right...The Earth does not belong to us: we belong to the Earth...Pigs are smarter than dogs...To stay a great singer or guitar player...