In Sophie Kinsella's book "I've Got Your Number," the character Sam Roxton shares an important message about self-advocacy. He acknowledges that standing up for oneself is often a challenging endeavor, but emphasizes the necessity of doing so. This reflects a universal truth that many people struggle with asserting themselves in various situations.

Sam's insight serves as a reminder that while it may be difficult to voice our needs and desires, it is essential for personal growth and confidence. The act of standing up for oneself not only fosters self-respect but also encourages healthier relationships with others. Kinsella highlights this theme through her narrative, making it relatable to readers.