"When you're in the womb, you're in a sterile environment. When you enter the birth canal and the world, you're not. Very quickly, you have, living on the surface of your body, trillions of bacteria, literally trillion."

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I would like to believe that the discovery of even a single fossil bacteria on Mars would teach us what we ought to know all along, and that is what binds us here on earth - all the diverse peoples here - is really much more profound than what seems to separate us.

— Richard E. Berendzen