The quote from Tobias Wolff's "This Boy's Life" reflects a deep-seated belief in the potential for transformation, emphasizing that the only true barrier to change resides in the skepticism of others. This idea suggests that if one has the conviction and determination to change, external disbelief should not hinder that journey. The acknowledgment of this barrier also highlights the societal pressure individuals face when pursuing personal growth or life-altering decisions.

The enduring nature of this belief indicates its profound impact on the human experience. It implies that the struggle against doubt, whether internal or from others, can be a significant challenge but also a motivation for self-improvement. By recognizing that the doubts of others are not as insurmountable as they may appear, individuals may find strength in their resolve to pursue their goals and instigate the changes they seek.