Budapest, March 17, 1911
VII., Erzsébet-körút 54

Dear Professor,

Many thanks for your detailed communications. I admire your stamina and punctuality in your correspondence, and I sometimes also have pangs of conscience about helping to waste your valuable time with our correspondence. But I am much too selfish to take the appropriate step in that regard. There has certainly never been any intellectual movement in which the personality of the discoverer has played such a great and indispensable