When we look up at night and view the stars, everything we s... - Carl Sagan, Cosmos

"And you are made of a hundred trillion cells. We are, each of us, a multitude."

"The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together."

"The fossil record implies trial and error, the inability to anticipate the future, features inconsistent with a Great Designer (though not a Designer of a more remote and indirect temperament.)"

"If we long for our planet to be important, there is something we can do about it. We make our world significant by the courage of our questions and by the depth of our answers."

"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."