Earth Day 2013: the 'pale blue dot' in quotations

8. Home sweet home

David Swanson/Philadelphia Inquirer/AP/File
An aircraft passes the Milky Way over a treeline in one of the darkest places east of the Mississippi, Cherry Springs State Park in Potter County, Pa.

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

Carl Sagan (Pale Blue Dot: A Vision of the Human Future in Space, 1994)

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