The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.
Carl SaganWhen you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it.
Carl SaganAny sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no.
Carl SaganThere is perhaps no better a demonstration of the folly of human conceits than this distant image of our tiny world.
Carl SaganAt a few hundred kilometers altitude, the Earth fills half your sky, and the band of blue that stretches from Mindanao to Bombay, which your eye encompasses in a single glance, can break your heart with its beauty. Home you think. Home. This is my world. This is where I come from. Everyone I know, everyone I ever heard of, grew up down there, under that relentless and exquisite blue.
Carl Sagan