"The Earth is a very small stage in a vast cosmic arena...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." These are the words of astronomer Carl Sagan, taken from his book Pale Blue Dot: A Vision of the Human Future in Space. Click through to see his thoughts vividly brought to life through the graphic prowess of Gavin Aust, freelance cartoonist and creator of the online comic "Zen Pencils." [Full Story]