What struck me most in these conversations, though, was the passionate curiosity, as Einstein described it, that these young people—by any measure some of the highest achievers in their respective fields in the world—could bring to almost any subject. Whether the conversation was about democracy or economic policy or historical injustice, and regardless of their field, they could ask thoughtful questions. I realized that what set them apart, and probably did even when they first applied to college, was a driving desire to know—what Stanford, in an earlier iteration of its application, called “intellectual vitality.”