I’m proud any time that I see a toxic chemical process, something that produces toxic waste or requires precious metals, which have to be mined at terrible environmental degradation costs — I’m proud when I see that replaced with a clean, efficient biological process that doesn’t produce those things. And we have to do that a million times over in order to move away from our addiction to this old-fashioned chemistry that we do.

Keeping my children’s feet on the ground. It’s challenging as you become wealthier and wealthier in life, and you see how money very often — third or fourth generation — destroys people. Their inability to appreciate it, understand it, not abuse it. I think I’ve equipped my children well.

I think that cases are, in some senses, are a little like children. I have six children. It’s hard to say which one I’m most proud of. But I think that certainly the marriage equality cases are cases that I am enormously proud of. I think that we have in those cases contributed to a really important change in this country. The cases that I’ve done in the area of racial equality as a young lawyer working in Mississippi, and then later on I successfully sued the Republican National Committee on behalf of the Democratic National Committee in 1986, I think it was, to stop the RNC from targeting black and minority districts with voter ID, voter security kinds of tactics. That litigation I’m pretty proud of.

Well, I’m proud of all of them. I think the one that’s most personal to me is the lil’ Coat of Many Colors, because it talks about my mom, my parents, and kind of gives you an insight. It also covers bullying, acceptance and all that.

One in particular, Mrs. Gordon. I hated her. I took AP English. The AP courses were just starting in the ’50s. And you could take a maximum of two. I took Chemistry and AP English. Today, the kids come into Duke, they have ten, 12, 15 AP courses. They start taking AP courses in their first year of high school. It’s absolutely amazing. Mrs. Gordon taught AP English. And she took a disliking to me for some reason early on, and she didn’t like the way I wrote, so she gave me very bad grades on all my essays. She pounded into me about how to write clear, effective, succinct English. And I learned those lessons well. But what I remember — and I pay her a tremendous tribute for that because there’s no more important skill, certainly for a scientist, but really for almost any profession, than to be able to express yourself clearly and succinctly. And I think she really taught me that.

I often repeat to them something that — not my mentor, but a senior scientist at the NIH — said to me once. We were having lunch together. I was despondent, despondent because nothing had worked. I had been there a year. And this guy said to me, “Look,” he said, “do you know the difference, Bob, between an average scientist and a world class scientist?” I said no. He said, “Here’s what it is.” He said, “For the average scientist, maybe one percent of their experiments work. But for the world class guy, the world beater, it could be as high as one-and-a-half or two percent.” And then that really stuck with me because it’s really true.