I think that my social life really took a hiatus in about 1941 — actually before I went to Burroughs Wellcome — because of the death of someone I loved very much. And after that, I really sort of put myself into my work in a way perhaps that I wouldn’t have otherwise. I might have gotten married, and it just didn’t happen, because the person I was engaged to died of a disease that could have been cured by penicillin, but there was no penicillin. That was another lesson I learned. How important some discoveries could be in life-saving. And years later, you know, thinking back on it, and saying, “If only there had been penicillin.” And it was a good lesson.