In this episode, we explore the life and legacy of Jonas Salk, the American virologist and medical researcher who developed the first effective polio vaccine. At a time when polio terrorized millions—especially children—Salk's creation of a killed-virus vaccine provided a safe and groundbreaking solution. Following massive clinical trials involving over 1.8 million children, the vaccine was declared a success in 1955, dramatically reducing polio cases worldwide. Salk famously chose not to patent the vaccine, declaring, "Could you patent the sun?" His selflessness and scientific vision saved countless lives. Later, he founded the Salk Institute for advanced research and continued to advocate for science driven by ethics and the public good. Jonas Salk's story is a powerful reminder that compassion and courage can lead to world-changing breakthroughs.