German Jewish philosopher and writer (1878–1965) who evolved a philosophy inspired by study of Hasidism and based on the encounter of man with nature, man, and God. ALS in German, signed “Buber,” one page, 7 x 12, May 26, 1954. Untranslated letter written from Jerusalem to an associate. Integral address panel on reverse is addressed in Buber’s hand and signed in the return address area, “Prof. M. Buber.” In fine condition, with two punch holes to right edge. R&R COA.