Themes are the fundamental and often universal ideas explored in a literary work.
The Little Prince exposes the ignorance that accompanies an incomplete and narrow-minded perspective. In Chapter IV, for example, when the Turkish astronomer first presents his discovery of Asteroid B-612, he is ignored because he wears traditional Turkish clothing. Years later, he makes the same presentation wearing European clothing and receives resounding acclaim. Because the three-petaled flower described in Chapter XVI has spent its whole life in the desert, it incorrectly reports that Earth contains very few humans and that they are a rootless, drifting people.
Even the protagonists of The Little Prince have their moments of narrow-mindedness. In Chapter XVII, the narrator confesses that his previous description of Earth focused too much on humans. In Chapter XIX, the little prince mistakes the echo of his own voice for that of humans and falsely accuses humans of being too repetitive. Such quick judgments, the story argues, lead to the development of dangerous stereotypes and prejudices. They also prevent the constant questioning and open-mindedness that are important to a well-adjusted and happy life.
For the most part, The Little Prince characterizes narrow-mindedness as a trait of adults. In the very first chapter, the narrator draws a sharp contrast between the respective ways grown-ups and children view the world. He depicts grown-ups as unimaginative, dull, superficial, and stubbornly sure that their limited perspective is the only one possible. He depicts children, on the other hand, as imaginative, open-minded, and aware of and sensitive to the mystery and beauty of the world.
In the story’s opening pages, the narrator explains that grown-ups lack the imagination to see his Drawing Number One, which represents a boa constrictor swallowing an elephant, as anything other than a hat. As the story progresses, other examples of the blindness of adults emerge. As the little prince travels from planet to planet, the six adults he encounters proudly reveal their character traits, whose contradictions and shortcomings the little prince then exposes.
The little prince represents the open-mindedness of children. He is a wanderer who restlessly asks questions and is willing to engage the invisible, secret mysteries of the universe. The novel suggests that such inquisitiveness is the key to understanding and to happiness. However, The Little Prince shows that age is not the main factor separating grown-ups from children. The narrator, for example, has aged enough to forget how to draw, but he is still enough of a child to understand and befriend the young, foreign little prince.
As the critic James Higgins points out, each of the novel’s main characters hungers both for adventure (exploration of the outside world) and for introspection (exploration within himself). It is through his encounter with the lost prince in the lonely, isolated desert that the friendless narrator achieves a newfound understanding of the world. But in his story of the little prince’s travels, Saint-Exupéry shows that spiritual growth must also involve active exploration. The narrator and the prince may be stranded in the desert, but they are both explorers who make a point of traveling the world around them. Through a combination of exploring the world and exploring their own feelings, the narrator and the little prince come to understand more clearly their own natures and their places in the world.