To the Editor: I can't understand how, in the March 2000 issue, Dr. Workman and his associates (1) could leave Dr. Thomas Szasz out of their discussion on autonomy. All of the work Appelbaum and Grisso did for the MacArthur Foundation only confirms Dr. Szasz' position. They wrote, "Mental illness alone does not invariably impair decision-making capacities"(2).