Not surprisingly, Einstein found solace in his work. He admitted to Hans Albert that focusing was difficult, but the attempt provided him the means to escape the painfully personal. “As long as I am able to work, I must not and will not complain, because work is the only thing that gives substance to life.” 48 When he came to the office, he was “ashen with grief,” his collaborator Banesh Hoffmann noted, but he insisted on delving into their work each day. He needed it more than ever, he said. “At first his attempts to concentrate were pitiful,” Hoffmann recalled. “But he had known sorrow before and had learned that work was a precious antidote.” 49 Together they worked that month on two major papers: one that explored how the bending of light by the gravitational fields of galaxies could create “cosmic lenses” that would magnify distant stars, and another that explored the existence of gravitational waves. 50 Max Born learned of Elsa’s death in a letter from Einstein in which it was mentioned almost as an afterthought in explaining why he had become less social. “I live like a bear in my cave, and really feel more at home than ever before in my eventful life,” he told his old friend. “This bearlike quality has been further enhanced by the death of my woman comrade, who was better with other people than I am.” Born later marveled at “the incidental way” in which Einstein broke the news of his wife’s death. “For all his kindness, sociability and love of humanity,” commented Born, “he was nevertheless totally detached from his environment and the human beings in it.” 51 That was not entirely true. For a self-styled bear in a cave, Einstein attracted a clan wherever he went. Whether it was walking home from the Institute, puttering around 112 Mercer Street, or sharing summer cottages and Manhattan weekends with the Watters or Bucky families, Einstein was rarely alone, except when he trundled up to his study. He could keep an ironic detachment and retreat into his own reveries, but he was a true loner only in his own mind. After Elsa died, he still lived with Helen Dukas and his stepdaughter Margot, and soon thereafter his sister moved in. Maja had been living near Florence with her husband, Paul Winteler. But when Mussolini enacted laws in 1938 that withdrew resident status from all foreign Jews, Maja moved to Princeton on her own. Einstein, who loved her dearly and liked her immensely, was thrilled. Einstein also encouraged Hans Albert, now 33, to come to America, at least for a visit. Their relationship had been rocky, but Einstein had come to admire the diligence of his son’s engineering work, especially regarding the flow of rivers, a topic he had once studied himself. 52 He had also changed his mind and encouraged his son to have children, and he was now happy to have two young grandsons. In October 1937, Hans Albert arrived for a three-month stay. Einstein met him at the pier, where they posed for photographs, and Hans Albert playfully lit a long Dutch pipe he had brought his father. “My father would like me to come here with my family,” he said. “You know his wife died recently and he is all alone now.” 53 During the visit, young and eager Peter Bucky offered to drive Hans Albert across America so that he could visit universities and seek positions as an engineering professor. The trip, which covered ten thousand miles, took them to Salt Lake City, Los Angeles, Iowa City, Knoxville, Vicksburg, Cleveland, Chicago, Detroit, and Indianapolis. 54 Einstein reported to Mileva Mari how much he had enjoyed being with their son. “He has such a great personality,” he wrote. “It is unfortunate that he has this wife, but what can you do if he’s happy?” 55 Einstein had written Frieda a few months earlier and suggested that she not accompany her husband on the trip. 56 But with his affection for Hans Albert fully restored, Einstein urged both of them to return together the following year, with their two children, and stay in America. They did. Hans Albert found a job studying soil conservation at a U.S. Department of Agriculture extension station in Clemson, South Carolina, where he became an authority on alluvial transport by rivers. Displaying his father’s taste, he built a simple wooden house, reminiscent of that in Caputh, in nearby Greenville, where he applied for American citizenship in December 1938. 57 While his father was becoming more connected to his Jewish heritage, Hans Albert became, under the influence of his wife, a Christian Scientist. The rejection of medical care, as sometimes entailed by that faith, had tragic results. A few months after their arrival, their 6-year-old son, Klaus, contracted diphtheria and died. He was buried at a tiny new cemetery in Greenville. “The deepest sorrow loving parents can experience has come upon you,” Einstein wrote in a condolence note. His relationship with his son became increasingly secure and even, at times, affectionate. During the five years that Hans Albert lived in South Carolina, before moving to Caltech and then Berkeley, Einstein would occasionally take the train down to visit. There they would discuss engineering puzzles that reminded Einstein of his days at the Swiss patent office. In the afternoon, he would sometimes wander the roads and forests, often in dreamy thought, spawning colorful anecdotes from astonished locals who helped him find his way home. 58 Because he was a mental patient, Eduard was not allowed to immigrate to America. As his illness progressed, his face became bloated, his speech slow. Mari increasingly had trouble allowing him back home, so his stays in the institution became more prolonged. Her sister Zorka, who had come to help care for them, descended into her own hell. After their mother died, she became an alcoholic, accidentally burned all the family money, which had been hidden in an old stove, and died a recluse in 1938 on a straw-covered floor surrounded only by her cats. 59 Mari lived on, through it all, in increasing despair. Prewar Politics In retrospect, the rise of the Nazis created a fundamental moral challenge for America. At the time, however, this was not so clear. That was especially true in Princeton, which was a conservative town, and at its university, which harbored a surprising number of students who shared the amorphous anti-Semitic attitude found among some in their social class. A survey of incoming freshmen in 1938 produced a result that is now astonishing, and should have been back then as well: Adolf Hitler polled highest as the “greatest living person.” Albert Einstein was second. 60 “Why do They Hate the Jews?” Einstein wrote in an article for the popular weekly Collier’s that year. He used the article not just to explore anti- Semitism but also to explain how the social creed inbred in most Jews, which he personally tried to live by, was part of a long and proud tradition. “The bond that has united the Jews for thousands of years and that unites them today is, above all, the democratic ideal of social justice coupled with the ideal of mutual aid and tolerance among all men.” 61 His kinship with his fellow Jews, and his horror at the plight that was befalling them, plunged him into the effort for refugee relief. It was both a public and a private endeavor. He gave dozens of speeches for the cause, was feted at even more dinners, and even gave occasional violin recitals for the American Friends Service Committee or the United Jewish Appeal. One gimmick that organizers used was to have people write their checks to Einstein himself. He would then endorse them to the charity. The donor would thus have as a keepsake a cancelled check with Einstein’s autograph. 62 He also quietly backed scores of individuals who needed financial guarantees in order to emigrate, especially as the United States made it harder to get visas. Einstein also became a supporter of racial tolerance. When Marian Anderson, the black contralto, came to Princeton for a concert in 1937, the
Nassau Inn refused her a room. So Einstein invited her to stay at his house on Mercer Street, in what was a deeply personal as well as a publicly symbolic gesture. Two years later, when she was barred from performing in Washington’s Constitution Hall, she gave what became a historic free concert on the steps of the Lincoln Memorial. Whenever she returned to Princeton, she stayed with Einstein, her last visit coming just two months before he died. 63 One problem with Einstein’s willingness to sign on to various and sundry movements, appeals, and honorary chairmanships was that, as before, it opened him to charges that he was a dupe for those that were fronts for communists or other subversives. This purported sin was compounded, in the eyes of those who were suspicious about his loyalty, when he declined to sign on to some crusades that attacked Stalin or the Soviets. For example, when his friend Isaac Don Levine, whose anticommunist writings Einstein had previously endorsed, asked him to sign a petition in 1934 condemning Stalin’s murder of political prisoners, this time Einstein balked. “I, too, regret immensely that the Russian political leaders let themselves be carried away,” Einstein wrote. “In spite of this, I cannot associate myself with your action. It will have no impact in Russia. The Russians have proved that their only aim is really the improvement of the lot of the Russian people.” 64 It was a gauzy view of the Russians and of Stalin’s murderous regime, one that history would prove wrong. Einstein was so intent on fighting the Nazis, and so annoyed that Levine had shifted so radically from left to right, that he reacted strongly against those who would equate the Russian purges with the Nazi holocaust. An even larger set of trials in Moscow began in 1936, involving supporters of the exiled Leon Trotsky, and again Einstein rebuffed some of his former friends from the left who had now swung to become ardently anticommunist. The philosopher Sidney Hook, a recovering Marxist, wrote Einstein, asking him to speak out in favor of the creation of an international public commission to assure that Trotsky and his supporters would get a fair hearing rather than merely a show trial. “There is no doubt that every accused person should be given an opportunity to establish his innocence,” Einstein replied. “This certainly holds true for Trotsky.” But how should this be accomplished? Einstein suggested it would best be done privately, without a public commission. 65 In a very long letter, Hook tried to rebut each of Einstein’s concerns, but Einstein lost interest in arguing with Hook and did not respond. So Hook phoned him in Princeton. He reached Helen Dukas, and somehow was able to make it through her defensive shield to set up an appointment. Einstein received Hook cordially, brought him up to his study lair, smoked his pipe, and spoke in English. After listening to Hook again make his case, Einstein expressed sympathy but said he thought the whole enterprise was unlikely to succeed. “From my point of view,” he proclaimed, “both Stalin and Trotsky are political gangsters.” Hook later said that even though he disagreed with Einstein, “I could appreciate his reasons,” especially because Einstein emphasized that he was “aware of what communists were capable of doing.” Wearing an old sweatshirt and no socks, Einstein walked Hook back to the train station. Along the way, he explained his anger at the Germans. They had raided his house in Caputh searching for communist weapons, he said, and found only a bread knife to confiscate. One remark he made turned out to be very prescient. “If and when war comes,” he said, “Hitler will realize the harm he has done Germany by driving out the Jewish scientists.” 66
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ALSO BY WALTER ISAACSON A Benjamin
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SIMON & SCHUSTER Rockefeller Center
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In Santa Barbara, 1933 Life is like
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CHAPTER FOURTEEN Nobel Laureate, 19
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their countless acts of support ove
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ABRAHAM FLEXNER (1866-1959). Americ
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CHAPTER ONE THE LIGHT-BEAM RIDER
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The Swabian CHAPTER TWO CHILDHOOD 1
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during the years he lived alone in
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elementary school seemed to me like
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fulfill my wishes and expectations,
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taken out of the black case. It pro
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one of her female friends in Zurich
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Summer Vacation, 1900 CHAPTER FOUR
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The first of these papers was on a
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Lake Como, May 1901 “You absolute
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molecular forces, which used calcul
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His office in Bern’s new Postal a
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affection, and it concluded on that
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Turn of the Century CHAPTER FIVE TH
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These packets or bundles of energy
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though it did not help him get an a
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elative to the medium (the water or
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finally he added, “I guess I just
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Suppose that at the exact instant (
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With all this talk of distance and
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his one-sentence drunken postcard t
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was better suited to theorizing. Fo
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Adler made sure that the Zurich aut
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Zurich, 1909 CHAPTER EIGHT THE WAND
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invitation to stay with Lorentz and
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As Einstein wandered around Europe
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The visitors made their case during
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Mari accepted the terms. When Haber
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When Einstein moved back to Zurich
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indistinguishable from a case where
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Haber’s son in math. 45 But when
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Part of Einstein’s genius was his
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the Annalen der Physik, “The gene
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e a heavy blow for my boys. Therefo
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“The Nobel Prize—in the event o
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Germany’s new left-wing governmen
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Cosmology and Black Holes, 1917 CHA
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quanta involved probability rather
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“Lights All Askew” CHAPTER TWEL
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celebrity, were thrilled that the n
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a “single-minded and single-hande
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Kinship CHAPTER THIRTEEN THE WANDER
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55. Einstein to Mileva Mari , Nov.
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Earman, Clark Glymour, and Robert R
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61. Einstein to Maurice Solovine, u
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14. Einstein to Hendrik Lorentz, Ja
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25. Einstein, “On the Foundations
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89. Reid, 142. Although this commen
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die Theorie stimmt doch.” 23. Max
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39. “Einstein Sees End of Time an
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sold the house but not the right to
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34. Einstein, “Speech to Professo
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65. Einstein, “The 1932 Disarmame
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10-255. 52. Einstein to Herbert Sam
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CHAPTER TWENTY: QUANTUM ENTANGLEMEN
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Szilárd Refrigerators,”Scientifi
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44. Einstein, “Why Socialism?,”
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1. Johanna Fantova journal, Mar. 19
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Page numbers in italics refer to il
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Bose-Einstein statistics, 327-28 Bo
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Edison, Thomas, 6, 299 Edison test,
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nervous strain of, 184, 217-18, 255
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as cosmologist, 223-24, 248, 249-62
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Feynman, Richard, 515, 584n “Fiel
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Hertz, Paul, 208 Hibben, John, 298
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Konenkov, Sergei, 436, 503 Konenkov
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Matthau, Walter, 13 Maxwell, James
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nuclear weapons, 482-84, 487-95, 53
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entanglement in, 454, 455, 458-59
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Remembrance of Things Past (Proust)
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superposition, 456-60 surface tensi
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Whitehead, Alfred North, 261 “Why
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ILLUSTRATION CREDITS Numbers in rom
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5 With Mileva and Hans Albert, 1905
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12 Hiking in Switzerland with Madam
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18 The 1927 Solvay Conference 19 Re
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23 Werner Heisenberg 24 Erwin Schr
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29 With Elsa and her daughter Margo
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34 Welcoming Hans Albert to America
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* The official name of the institut
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* The letters were discovered by Jo
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* A person “at rest” on the equ
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* If the source of sound is rushing
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* The German phrase he used was “
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* She was born Elsa Einstein, becam
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* See chapter 7. For purposes of th
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* Here’s how it works. If you are
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* Einstein’s salary after tax was
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* See chapter 14 for Einstein’s d
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* I have used the translation prefe
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* Robert Andrews Millikan would win
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* The de Broglie wavelength of a ba
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* From his 1905 special relativity
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* As Eddington showed, the cosmolog
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* There are two related concepts th