Antoine de Saint-Exupéry emphasizes the challenge of self-judgment compared to judging others. He suggests that while it’s easy to critique others' actions and choices, understanding and evaluating oneself accurately is significantly more complex. This self-assessment requires introspection and honesty, qualities that are often neglected.

According to Saint-Exupéry, achieving a correct understanding of oneself indicates a deep wisdom. It is this ability to look inward and confront personal truths that distinguishes a wise person. True wisdom involves recognizing one’s faults and strengths, leading to a greater understanding of oneself and, ultimately, the world.