In "Mountains Beyond Mountains," Tracy Kidder explores why exceptional individuals like Dr. Paul Farmer can have a significant impact on the world. Farmer's unique blend of talent and determination often manifests in seemingly irrational actions, yet these very choices contribute to his effectiveness as a change-maker. His journey, including the arduous trek to Casse, reflects a commitment to his vision of healthcare accessibility, revealing how unconventional paths can lead to profound solutions.

Farmer's relentless pursuit of his goals often defies practicality, illustrating how his unconventional approaches challenge the status quo. This narrative highlights the importance of passion and perseverance in instigating change, suggesting that greatness often arises from the willingness to embrace the absurd and push boundaries for a greater cause. Kidder paints a picture of a man whose daunting efforts, driven by idealism and empathy, underscore the transformative power of individual action in the realm of social justice.