28 See Poliakov and Wulf, Das Dritte Reich und seine Denker, letters of 30th August 1934 to Goebbels against Stefan Zweig and Richard Strauss; also Rosenberg, Politisches Tagebuch. See also, as symptomatic of Rosenberg's quarrelsomeness, the further-examples given by Poliakov and Wulf in regard to Ley, Hess and Bormann.