In the classic novel "The Hound of the Baskervilles" by Sir Arthur Conan Doyle, the narrative explores themes of isolation and the impact of companionship. The quote, "Evil indeed is the man without one woman to mourn him," suggests that a man's worth is significantly tied to the relationships he forms, particularly with women. It highlights the emotional depth that love and connection bring to an individual's life, implying that a lack of such bonds can lead to a morally corrupt existence.

This line also reflects the broader societal values during the time the story was written. It insinuates that a life devoid of affection and mourning from a significant other encompasses a certain darkness. This perspective encourages readers to appreciate the importance of human connections, emphasizing that emotional ties can greatly influence one's actions and legacy. In this way, Doyle weaves a commentary on morality and loneliness throughout the narrative.