"He Knew He Was Right" ("He Knew He Was Right") is a novel by the outstanding English writer Anthony Trollope, which was published in 1869. In this well-known work, the author explores the complex relationship between a husband and wife, considering issues of jealousy, unfounded suspicions, and the influence of society on personal life. The main character Louis Trenter confidently implements his own concept of family happiness, not paying attention to the thoughts and feelings of his wife Emilia. The plot develops in a tense atmosphere, where the mind barely restrains emotions, and the author constantly raises topical issues of morality and ethics in the family. The novel "He knew he was right" is a work that leaves the reader thinking about the complexity and anxiety of relationships in married life, as well as the moral dilemmas that arise in such situations.