“There is perhaps no better a demonstration of the folly of human conceits than this distant image of our tiny world.”

Carl Sagan, describing the “Pale Blue Dot,” an image of the Earth taken by the Voyager 1 spacecraft from a distance of 6 billion kilometers.

 

“It truly is an oasis - and we don’t take very good care of it. I think the elevation of that awareness is a real contribution to saving the Earth.”

Dave Scott, Apollo 9 & 15 astronaut

 

“When you’re finally up at the moon looking back on earth, all those differences and nationalistic traits are pretty well going to blend, and you’re going to get a concept that maybe this really is one world and why the hell can’t we learn to live together like decent people.” 

Frank Borman, Apollo 8 astronaut

 

“It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put my thumb up and shut one eye, and my thumb blotted out the planet Earth. I didn’t feel like a giant. I felt very, very small.”

Neil Armstrong, Apollo 11 astronaut