It would be a poor thing to be an atom in a universe without physicists, and physicists are made of atoms. A physicist is an atom's way of knowing about atoms.

He won a share of the 1967 Nobel Prize in Physiology or Medicine with Haldan Keffer Hartline and Ragnar Granit. In 1934 Wald went to Harvard University where he became an instructor then a professor. Wald then went on to work in Zurich Switzerland with the discoverer of vitamin A Paul Karrer.

George Wald (November 18 1906 – April 12 1997) was an American scientist who is best known for his work with pigments in the retina. He won a share of the 1967 Nobel Prize in Physiology or Medicine with Haldan Keffer Hartline and Ragnar Granit.