Instruction and study (1) Appointments and retirements (1) Retirement (1) Aging (1) Confucianism and law (1) Early retirement (1) Visions (1) Reality (1) Occupations (1) Life span, Productive (1) Working class (1) Extremities (Anatomy) (1) Executives (1) Evidence (1) Certainty (1) Back (1) Authors (1) Age (1) Labor unions (1) Societies, etc (1) Societies and clubs (1) Practice (1) Visiones (1) Jubilación (1) Jubilación anticipada (1) Extremidades (1) Realidad (1) Funcionarios--Sindicatos (1) Escritores (1) Certeza (1)