German Jewish philosopher and writer; he evolved philosophy inspired by study of Hasidism, based on encounter of man with nature, man, and God. ALS, one page, 7.25 x 10.5, The Langham Hotel and Apartments letterhead, February 24, 1952. A letter to Dr. Nash. In part: “I shall come to New York only March 28. My address there will be as it was…I have to lecture 30 in Philadelphia, 31 in Brooklyn, April at a luncheon of the Israel Seminar, 3 in Boston…I hope to meet you in New York. Let me know in time when you come. Details about the lectures you can always get through Rabbi Seymour Siegel…At any event I hope you will come to see me at my hotel.” In fine condition, with edge toning, ink notations in another hand in the upper corners. R&R COA.