I prefer the finishing sentence...
"To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known"
Unfortunately, not everyone on this pale blue dot is of the same mind and that was proven beyond any doubt on Tuesday. What happens next is unknown but I think every person watching these events unfold knows the world will never be the same after 9/11/2001.
I'm aware that considering the current events this post wasn't DC/SETI intended but since we're in a DC forum and this is a Carl Sagan reference, I'd like to mention it was Sagan that inspired me to start the SETI@Home project. I read and still have a borrowed copy of "Pale Blue Dot"... Sagan was a great man.