D O C U M E N T 1 4 J A N U A R Y 1 9 2 2 7 7 Standpunkte nicht weiter. Wenn Sie sagen, dass Ihr Versuch entscheidend ist, will ich es glauben, obwohl ich es noch nicht begreife, trotz der Erläuterungen Geigers in Jena.[14] Ich habe inzwischen wunderbare zahlenmässige Gesetze von Liniencombinatio- nen im Anschluß an Paschensche Meßungen mir klargemacht u. in der 3. Aufl. meines Buches dargestellt.[15] Ein Schüler von mir (Heisenberg, 3. Semester!)[16] hat diese Gesetze u. die der anomalen Zeemaneffekte sogar modellmässig gedeutet (Z. f. Ph., im Druck).[17] Alles klappt, bleibt aber doch im tiefsten Grunde unklar. Ich kann nur die Technik der Quanten fördern, Sie müssen ihre Philosophie ma- chen. Innerlich glaube ich auch nicht mehr an die Kugelwelle. (In den anomalen Zeeman-effekten steckt übrigens auch eine Portion Aufgeben der Undulationstheo- rie.) Setzten Sie ihr nur ordentlich zu! Ihr getreuer A. Sommerfeld ALS. Einstein and Sommerfeld 1968, pp. 95–97 Sommerfeld 2004, pp. 110–111. [21 347]. [1]Einstein, together with Felix Klein, Otto Blumenthal, and David Hilbert, was editor of the Mathematische Annalen Sommerfeld was a member of its editorial board. [2]Einstein had canceled a lecture in Munich after reading in Die Weltbühne 17 (1921): 275 (15 September) that such a lecture had led to controversy among Munich students (see his letter to Arnold Sommerfeld of 27 September 1921 [Vol. 12, Doc. 247]). [3]Die Schaubühne, renamed Die Weltbühne in 1918, was a weekly magazine with a pacifist stance, strongly in favor of reparation payments and compliance with the Versailles Treaty (Deák 1968). [4]For the content of the article, see Einstein to Arnold Sommerfeld, 27 September 1921 (Vol. 12, Doc. 247). [5]Erich von Drygalski (1865–1949) was Professor of Geography at the University of Munich. [6]Einstein had described Munich students to Sommerfeld as members of an “anti-Semitic and reactionary wasps’ nest” (27 September 1921 [Vol. 12, Doc. 247]), and expected that they would pre- pare a “surprise” for him if he lectured there (Einstein to Arnold Sommerfeld, 19 October 1921 [Vol. 12, Doc. 261]). [7]Munich students had welcomed with cheers the news of the murder of Bavarian socialist premier Kurt Eisner. The act had been committed on 21 February 1919 by the Munich student Anton Count von Arco auf Valley. Many students were Freikorps members (Plöckinger 2008). [8]A reference to comments from an interview with the Italian journalist Aldo Sorani as published in Il Secolo. Einstein is quoted as having said that the existence of “an irritated and aching national- ism” (“ein gereizter und schmerzender Nationalismus”) is to be blamed “primarily on the Versailles Treaty and on the incessant sequence of ultimatums, decrees, commands, which the Entente imposes by virtue of the Treaty and which poison the wound and make the national sentiment livid with rage” (“vor allem im Versailler Vertrag und in der unaufhörlichen Folge von Ultimatums, Dekreten, Befeh- len, welche die Entente kraft des Vertrages auferlegt und welche die Wunde vergiften und das Natio- nalgefühl bis zur Weißglut erhitzen” Auslandspost, 12 November 1921). For the complete version of Einstein’s interview with Sorani, as published in Il Messagero, see “A Conversation with Albert Ein- stein,” Vol. 12, Appendix G). [9]The article in Le Figaro of 13 October 1921 reported on a dinner-table conversation that the author, Raymond Recouly, had had with Einstein (Recouly 1921). On its contents, see Hermann Anschütz-Kaempfe to Einstein, 10 November 1921 (Vol. 12, Doc. 293), and Doc. 41. Elsa Einstein was quoted as saying that explaining relativity to the public would be aided by following the historical route of ideas starting with Copernicus she further would have agreed with Einstein that, in order to understand the theory, it helps to think about the fundamentals of physics, and in particular “not to