In the book "Mountains Beyond Mountains," the author Tracy Kidder explores the inspiring beliefs of Dr. Paul Farmer, who is convinced that change is possible through the efforts of dedicated individuals. Farmer's organization, Partners In Health (PIH), represents a collective belief that a committed small group can significantly impact the world, challenging the notion that such aspirations are unrealistic.

Farmer embraces the idea that his team's passion and determination may be perceived as craziness rather than idealism. He believes that this unconventional approach is what makes them capable of tackling global health issues and improving lives in ways others deem impossible. His conviction serves as a powerful reminder of the potential for small groups to instigate meaningful change.