Austrian physician and founder of psychoanalysis who theorized that the symptoms of hysterical patients represent forgotten and unresolved infantile psychosexual conflicts. His psychoanalytic theories, which initially met with hostility, profoundly influenced 20th-century thought. ALS in German, untranslated, signed “Freud,” one page, 5.75 x 7.75, no date. In fine condition, with erased pencil notations at bottom, trimmed edges, scattered light creasing and trivial soiling. COA John Reznikoff/PSA/DNA and R&R COA.