They were local. They tended to be the math teacher at junior high school, Jack Druckman, the math teacher in high school, Irene Finkel, who ran and supported the math team. They tended to be very local heroes. I was never one at those times for distant heroes and truly heroic legendary heroes. They were the local teachers who really made a huge difference in my life.

The man who inspired me most, I think, was Dr. Alfred Blalock, who was professor of surgery at Johns Hopkins. He was a rather simple man with a burning curiosity. It was through his curiosity that he made many real contributions to medical science. I didn’t think he was an especially brilliant man, I just admired him for his curiosity, and for his perseverance.

It so happened that we had a very good math teacher, who was a Communist. I remember having learned from him something that I never forget: the rule of nines. A simple point: you add up the numerals in a number, and if the original number was divisible by nine, then the sum of the figures also is. For instance, you take a number like 243. Two and four and three is nine. Therefore, 243 must be divisible by nine. Actually it is nine times 27. The rule is interesting because it’s so simple. What was really interesting to us ten-year-olds is that our math teacher proved it. The proof is not terribly difficult, but it was one of the first simple and not quite obvious mathematical proofs that I encountered.

My mother in that way I’ve described. My daddy taught me how much a man could do in dealing directly with a multiplicity of responsibilities. Outside my family, the main person, outside of my father, the main man who has had an influence on my life is Admiral Hyman Rickover. I was one of the two young officers in the program to build atomic submarines. There were two built: the Nautilus and the Sea Wolf. I was in charge of the crew that was helping to build the Sea Wolf and building the nuclear power plant that later became a prototype. Rickover was a man who demanded absolute excellence and total dedication from all those who worked under him. He demanded as much from himself. And so he set a standard of commitment and perfection in life that I had never experienced before. He really had a great impact on my life.

A typical day is probably lots of meetings and stuff. But if it’s an idea that we’re developing, what might happen is I might talk to some of the people in the lab, maybe have them come in the office and brainstorm with them, and say, “Well, here’s a problem that we need to solve,” or need to solve better. So just as an example, when I had this idea that we could create better materials, I got about four or five people together with different backgrounds — chemistry, engineering, safety, toxicology — and we started putting chemical structures on the blackboard and say, “Well, this might work,” or “This might not be safe,” and ended up with certain structures that we thought would be good. And then, one of the guys would go out and try to make those structures, and we’d go from there.

In fact, what I usually say to people, “Probably some of the most successful scientists are the ones that know how to deal with failure well.” Because it’s easy to feel good when you succeed. That’s an easy thing. But you’re probably going to fail in science a lot more than you succeed, so you really have to learn how to deal with it and not let it beat you.

I didn’t realize that scientists were like that, and that people were like that. I would have thought — and I like to hope — that I encourage people rather than discourage people. I think you can say no and still say, “Boy, that might be a tough problem, but if you really work at it maybe you’ll solve it,” rather than, “No, it will never happen.”