In the first two-thirds of his life, Marcuse distinguished himself as a brilliant student of Hegel, Freud, and Marx. Marcuse also wrote a book-length condemnation of the Soviet brand of dogmatic Marxism, and for several years during and after World War II, work for the U.S. state Department's office of War Information and the Office of Strategic Serve These last affiliations contributed to the (obviously false) charge years later that he was a secret government agent sent to undermine the student movement.