So then, if I remember, it was a Friday afternoon, 1985. We were thinking and discussing in the laboratory. I brought up to my group, I said, “Why do our bodies react so sensitively to an outside chemical like nitric oxide?” I mean, we don’t have nitric oxide in the body, we didn’t think. So why do our bodies have all this ability to react to this noxious outside chemical that could protect us against cardiovascular disease? That was the first time I thought, “Well, maybe our arteries — our bodies — produce nitric oxide.” It’s just that we don’t know that yet. Nobody’s tested that. So we set aside a series of experiments, very difficult experiments. It took a year, and we finally showed that our arteries can produce nitric oxide. So then it became clear that yes, we have nitric oxide, and that we make it in order to protect ourselves against cardiovascular disease. That is the principal reason I was awarded the Nobel Prize. So it started with nitroglycerine and then wound up with that discovery.