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 both sides, 6.5 x 8.25, July 13, 1924. Letter to German writer Arnold Zweig. In part (translated): “I am quite unable to write the desired essay; I am so busy with the affairs of the University at Jerusalem…and several other obligations that I have not an hour left.” Intersecting folds (one faint vertical fold passing through a single letter of the signature), scattered creases, and a small area of foxing, otherwise fine condition. Accompanied by a full translation. RR Auction COA.