In "The Dog Who Came in from the Cold," Alexander McCall Smith explores themes of identity and self-acceptance. The quote, "We should all busy ourselves in being who we are," emphasizes the importance of embracing one's true self rather than conforming to external expectations. This message encourages individuals to focus on personal growth and authenticity, reminding readers that each person's journey is unique and valuable.

Throughout the narrative, McCall Smith illustrates how characters navigate their relationships and challenges while staying true to themselves. The story highlights that genuine happiness often stems from self-discovery and being comfortable in one's own skin. Ultimately, the novel serves as a reminder to readers that embracing who we are is an essential part of living a fulfilling life.