In "The Glass Castle," Jeannette Walls shares a pivotal lesson from her mother: the importance of self-acceptance and not being overly concerned about others' opinions. This belief reflects the idea that life is fleeting, and wasting time on external judgments only detracts from personal happiness and authenticity.
The message encourages individuals to embrace their true selves and find confidence in their identity without seeking validation from others. Ultimately, it highlights the value of accepting oneself and the freedom that comes from disregarding societal expectations.