 Among the scientists who came to the United States or its Allies were Edward Teller, Niels Bohr, Enrico Fermi, Otto Stern, Victor Weisskopf, Hans Bethe, and Lise Meitner, many of whom worked to ensure that the Allies would develop nuclear weapons before the Nazis.With so many Jewish scientists forced to live in the United States, where they often worked together, Einstein wrote to a friend, "For me the most beautiful thing is to be in contact with a few fine Jews—a few millennia of a civilized past do mean something after all.