Vienna IX, Berggasse 19
October 8, 1907

Dear Colleague

My first reaction to your letter was one of regret, which I soon overcame. To a youthful man like yourself it doesn't do any harm to be forcibly turned loose into the world, “au grand air,” and the fact that as a Jew it will be more difficult for you may, as with all of us, have the effect of stimulating your productivity. It goes without saying that my sympathy and best wishes accompany you on the new road,1 and if it is at all possible I shall try to do more. If I were still on intimate terms with Dr. W. Fliess of Berlin,