Einstein: His Life and Universe

44

. Folsing, 344.

45

. Einstein to Hans Albert Einstein, Jan. 25, 1915.

46

. Nathan and Norden, 4; Elon, 326. Also translated as the “Manifesto to the Civilized World.”

47

. Einstein to Georg Nicolai, Feb. 20, 1915. The full text is in CPAE 6: 8, and Nathan and Norden, 5. Clark, 228, makes the case that some of the writing was Einstein’s. See also Wolf William Zuelzer,

The Nicolai Case

(Detroit: Wayne State University Press, 1982); Overbye, 273; Levenson, 63; Folsing, 346–347; Elon, 328.

48

. Nathan and Norden, 9; Overbye, 275–276; Folsing, 349; Clark, 238.

49

. Einstein to Romain Rolland, Sept. 15, 1915; CPAE 8a: 118 (German edition), footnote 2; Romain Rolland diary, cited in Nathan and Norden, 16; Folsing, 366.

50

. Einstein to Paul Hertz, before Oct. 8, 1915; Paul Hertz to Einstein, Oct. 8, 1915; Einstein to Paul Hertz, Oct. 9, 1915.

51

. Einstein, “My Opinion on the War,” Oct. 23–Nov. 11, 1915, CPAE 6: 20.

52

. Einstein to Heinrich Zangger, after Dec. 27, 1914, CPAE 8: 41a, in supplement to vol. 10.

53

. Hans Albert Einstein to Einstein, two postcards, before Apr. 4, 1915, part of the family correspondence trust that was under seal until 2006. CPAE 8: 69a, 8: 69b, in supplement to vol. 10.

54

. Einstein to Hans Albert Einstein, ca. Apr. 4, 1915.

55

. Einstein to Heinrich Zangger, July 16, 1915.

56

. Einstein to Elsa Einstein, Sept. 11, 1915; Einstein to Heinrich Zangger, Oct. 15, 1915; Einstein to Hans Albert Einstein, Nov. 4, 1915. For Einstein’s complaint that he was barely able to see his boys during the Sept. 1916 visit, see Einstein to Mileva Mari

, Apr. 1, 1916: “I hope that this time you will not again withhold the boys almost entirely from me.”

57

. Einstein to Heinrich Zangger, Oct. 15, 1915; Michele Besso to Einstein, ca. Oct. 30, 1915.

58

. Once again, I have drawn on the works of Jurgen Renn, Tilman Sauer, John Stachel, Michel Janssen, and John D. Norton.

59

. Horst Kant, “Albert Einstein and the Kaiser Wilhelm Institute for Physics in Berlin,” in Renn 2005d, 168– 170.

60

. Wolf-Dieter Mechler, “Einstein’s Residences in Berlin,” in Renn 2005d, 268.

61

. Janssen 2004, 29.

62

. Einstein to Heinrich Zangger, July 7, ca. July 24, 1915; Einstein to Arnold Sommerfeld, July 15, 1915.

63

. Specifically, the issue was whether the

Entwurf