  The Lehrhaus attracted many of the leading, up-and-coming Jewish intellectuals of Weimar Germany into its classrooms. In its early years, Martin Buber, Eduard Strauss, Ernst Simon, Richard Koch, Rudolf Hallo, and—before his death—Nehemiah Nobel, were heavily invested in the conceptual and practical development of the institute. Through the 1920s, the Lehrhaus enjoyed the participation of such notables and future notables as Siegfried Kracauer, S.Y Agnon, Erich Fromm, Bertha Pappenheim, Gershom Scholem, Leo Strauss, and Leo Loewenthal.