I think I’m most proud of the fact that so many of the drugs have really been useful in saving lives. I’ve run into people whose lives have been saved, and the kind of satisfaction that you get from having someone come up and say, “My child had acute leukemia and your drug saved him.” Or, “My little girl had herpes encephalitis, and she is now cured, she is back at school. She is doing very well. People told me that she might be mentally affected, but she is not.” I run into people who have had kidney transplants for 20 years who are still taking the drug. And I don’t think that anything else that happens to you can match that type of satisfaction.

There are a lot of images to be proud of. There are a lot of images that I’m very happy with, in the film context, that were very hard to do or that happened in the right moment, and that were the embodiment of the fact that I engulf myself in the spirit of an understanding of those animals at that time.

And then in 1974 I started to work on phosphorous chemistry which is the area of which I’m most proud as it turns out. I’m most proud of my work on carbon phosphorous chemistry.

I am most proud of the legacy of my students and postdocs. The real triumph, for me, is witnessing the transformation of the individuals who have passed through my lab. They arrive with potential and leave making substantial impacts. Seeing them flourish professionally and contribute meaningfully to our field is, without a doubt, my greatest accomplishment.

I then converted a bathroom, seldom used by the family, into a laboratory and spent hours playing with chemistry sets. With the help of an aunt, Esther Molina, who was a chemist, I continued with more challenging experiments along the lines of those carried out by freshman chemistry students in college.

I did. As a kid, I liked music. I still like it a lot of course. I used to play the violin. I did contemplate, well, maybe that’s an option. I could become a musician. Somehow my parents got some advice that unless I was willing to spend eight or 10 hours a day just playing the violin that I should just give it up. To me, that was very bad advice because you could of course, get very involved in music without being a musician. Fortunately, even though I gave up eventually playing the violin myself, I never gave up my fondness for music. But if I had a chance again, I would not give it up. I would just do it as a hobby. I think that was just because I did not get the correct advice.

there are really very many. Again, as a child, it was obviously those scientists which had lived in the past that had made such an important mark in science history.

At first the research did not seem to be particularly interesting – I carried out a systematic search for processes that might destroy the CFCs in the lower atmosphere, but nothing appeared to affect them. We knew, however, that they would eventually drift to sufficiently high altitudes to be destroyed by solar radiation. The question was not only what destroys them, but more importantly, what the consequences are.

Sherry offered me a list of research options: the one project that intrigued me the most consisted of finding out the environmental fate of certain very inert industrial chemicals – the chlorofluorocarbons (CFCs) – which had been accumulating in the atmosphere and which at that time were thought to have no significant effects on the environment. This project offered me the opportunity to learn a new field – atmospheric chemistry – about which I knew very little; trying to solve a challenging problem appeared to be an excellent way to plunge into a new research area.

I had a number of very good teachers in high school, in fact. Some mathematics teachers that perhaps allowed me the freedom to go beyond the normal routine of the class and to explore some more advanced areas. The same thing happened in college. I was able to communicate with a few of my teachers and professors, and go beyond the normal expectations. And then, as I mentioned before, Professor Pimentel, my mentor for graduate studies, was really influential in terms of the influence that he had for me.