Every saint and sinner in the history of our species lived there - on a mote of dust suspended in a sunbeam. Carl Sagan
It's often been said that astronauts have acquired a special view of lifeboat Earth. In this video, several of them explain what it was like to experience the sight for the very first time.
As astronaut Nicole Stott says in the piece, "I don't know how you come back and not be changed."
Whether it's the experience of watching Earth from space, or of having the final line of poem fit just so, or of seeing that business idea work - really work - in the marketplace, perspective is an intimate distance.