La Mancha Indelible is a short story written by Juan Bosch (30 June 1909 – 1 November 2001, a Dominican novelist, essayist, and political leader. Written when he was in exile in 1960, when the Dominican Republic was governed by a dictatorship, the main argument is that some political parties control the psyche of the people they govern over time, planting ideas and inducing fear that is hard to erase from their consciousness.