Furthermore, we are far too deeply indebted to the Jews. Leaving aside Heine and Börne, Marx was a full-blooded Jew; Lassalle was a Jew. Many of our best people are Jews. My friend Victor Adler, who is now atoning in a Viennese prison for his devotion to the cause of the proletariat, Eduard Bernstein, editor of the London Sozialdemokrat, Paul Singer, one of our best men in the Reichstag — people whom I am proud to call my friends, and all of them Jewish! After all, I myself was dubbed a Jew by the Gartenlaube and, indeed, if given the choice, I’d as lief be a Jew as a ‘Herr von’!

(Source.)