Seventy years ago, Jonas Salk changed history with the first successful polio vaccine—an innovation that reshaped public health and saved millions of lives. But what does his legacy mean in a world now grappling with vaccine skepticism, science politicization, and resurging preventable diseases? In this episode of Curie, we reflect on Salk’s radical generosity, the ethics of scientific discovery, and what today’s healthcare professionals can still learn from his example.