In "The Little Prince," Antoine de Saint-Exupéry explores the theme of friendship and the profound impact it has on our lives. The quote "To forget a friend is sad" reflects the deep emotional connection we share with friends and highlights the grief that comes with losing those bonds. It emphasizes the importance of cherishing memories and nurturing relationships throughout life.

The narrative illustrates how forgetting a friend diminishes the richness of our experiences and the joy that companionship brings. Saint-Exupéry invites readers to appreciate the significance of friendships, reminding us that every connection we make shapes who we are and the journey we take in life.