 This list he kept in his pocket. A list of diseases that still had yet to be conquered. And I think it was a reminder that, you know, for him, his work would never be done. He would say this. He would say it was like putting up a fence. And, you know, then you take a break and, you know, everybody gathers around and they drink from, you know, from this bucket of water and they pass the ladle around. And then you're done. And then you go back to doing it again. It was never, ever satisfied.