Pnin(fine) describes an exiled old Russian professor lives and teaches in one of the United States schools. His temperament makes him incompatible with the surroundings, and often be ridiculed by colleagues, his wife even abandoned him later. He was alone and could only be indulged in paper and studying Russian ancient culture and classical literature to comfort him; When thinking about the past affairs, he always shows a thick nostalgia. Nabokov has combined Russian culture and modern American civilization cleverly together to depict an uprooted people who lost his motherland, cut off the relationship with the motherland culture and his love in a humorous and witty way.