In "The Adventure of the Dying Detective," Sherlock Holmes expresses a deep-seated motivation behind his actions. He emphasizes that the driving force behind what he does stems simply from his own desire. This indicates a strong sense of personal agency and conviction in his choices, suggesting that intrinsic motivation is vital for his endeavors.

Holmes’s assertion raises questions about the nature of purpose and the importance of individual will. By stating, "Is that not enough?" he challenges the necessity of external validation, asserting that one's own desires can be a sufficient justification for actions taken. This perspective highlights a central theme in the story about the power of personal resolve and the complexities of human motivations.