"There's life all over this universe, but the only life in the solar system is on earth, and in the whole universe we are the only men."

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About George Wald

George Wald was an American biologist and physiologist known for research on visual pigments in the retina. He shared the 1967 Nobel Prize in Physiology or Medicine for discoveries concerning the primary physiological and chemical visual processes in the eye. He taught for decades at Harvard University.

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