Howard Geller says that four possible responses were available to the German Jewish community. The majority of German Jews were only nominally religious and they saw their Jewish identity as only one of several identities; they opted for bourgeois liberalism and assimilation into all phases of German culture. A second group (especially recent migrants from eastern Europe) embraced Judaism and Zionism. A third group of left-wing elements endorsed the universalism of Marxism, which downplayed ethnicity and antisemitism. A fourth group contained some who embraced hardcore German nationalism and minimized or hid their Jewish heritage. When the Nazis came to power in 1933, a fifth option was seized upon by hundreds of thousands: escape into exile, typically at the cost of leaving all wealth behind. The German legal system generally treated Jews fairly throughout the period. The Centralverein, the major organization of German Jewry, used the court system to vigorously defend Jewry against antisemitic attacks across Germany; it proved generally successful. Intellectuals Jewish intellectuals and creative professionals were among the leading figures in many areas of Weimar culture. German university faculties became universally open to Jewish scholars in 1918. Leading Jewish intellectuals on university faculties included physicist Albert Einstein; sociologists Karl Mannheim, Erich Fromm, Theodor Adorno, Max Horkheimer, and Herbert Marcuse; philosophers Ernst Cassirer and Edmund Husserl; communist political theorist Arthur Rosenberg; sexologist and pioneering LGBT advocate Magnus Hirschfeld, and many others. Seventeen German citizens were awarded Nobel prizes during the Weimar Republic (1919–1933), five of whom were Jewish scientists. The German-Jewish literary magazine, Der Morgen, was established in 1925. It published essays and stories by prominent Jewish writers such as Franz Kafka and Leo Hirsch until its liquidation by the Nazi government in 1938. Jews under the Nazis (1933–45) In Germany, according to historian Hans Mommsen, there were three types of antisemitism. In a 1997 interview, Mommsen was quoted as saying: One should differentiate between the cultural antisemitism symptomatic of the German conservatives—found especially in the German officer corps and the high civil administration—and mainly directed against the Eastern Jews on the one hand, and völkisch antisemitism on the other. The conservative variety functions, as Shulamit Volkov has pointed out, as something of a "cultural code." This variety of German antisemitism later on played a significant role insofar as it prevented the functional elite from distancing itself from the repercussions of racial antisemitism. Thus, there was almost no relevant protest