n a novel by this writer,
n a novel by this writer, a woman describes folk songs as being "the leitmotiv of her existence." In that novel written by this author, the protagonist realizes that the woman shaving his face is an old acquaintance named Lucie Sebetka. This author described the slow death of a dog from cancer in the final section of a novel in which a man compares the Communist Party to Oedipus. The statement "Optimism is the opium of the people" is written on a postcard to Marketa in a novel by this author primarily narrated by Ludvik. In this author's best-known novel, Tomas and Tereza move away from Prague. For 10 points, name this Czech-French author of The Joke and The Unbearable Lightness of Being.