J. Robert Oppenheimer

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…who were communists, mostly people involved in the antifascist movement of the thirties. This loss of security clearance ended Oppenheimer's influence on science policy. He held the academic post of director of the Institute of Advanced Study at Princeton, and in the last years of his life, he thought and wrote much about the problems of intellectual ethics and morality. He died of throat cancer in 1967. "Science is not everything, but science is very beautiful."