Correspondence, 1939 - 1969Theodor W. Adorno (19031969) was a philosopher, sociologist, and music theorist. A prominent member of the Frankfurt School, Adorno was one of the most influential thinkers of the twentieth century in the areas of social theory, philosophy, and aesthetics. Gershom Scholem (18971982) was a historian of religious ideas and a preeminent scholar of Jewish mysticism. He was the first Professor of Jewish Mysticism at the Hebrew University of Jerusalem.