In "Don Quijote of La Mancha," Cervantes explores the theme of value through the perception of physical attributes. The character highlights that having strength or weapons, like an arm or a sword, is less important than the ability to speak or communicate. This notion points to the idea that a person's worth is not merely defined by physical prowess but more by their ability to express themselves.

Additionally, the metaphor of a mill without a stone illustrates that something essential is missing without communication. Cervantes further emphasizes that, while diamonds are traditionally seen as valuable, the significance of simple things, such as teeth, can be far greater. This reflection urges readers to reconsider what they deem valuable in life.