An actor – that’s all I’ve ever wanted to do. I went to stage school when I was 13.

A veterinarian, but I decided against it because it required too many years of schooling; I wasn’t great at school.

A nurse, because my grandmother was a midwife. I was named after her but never got to meet her.

At the end he asked me if I would like to go into the Army. I thought it would be splendid to command an Army, so I said 'Yes' at once: and immediately I was taken at my word. ... I was told later that he had only come to the conclusion that I was not clever enough to go to the Bar. However that may be, the toy soldiers turned the current of my life.

proud of recognizing that as a scientist, it was not only important to do research and find new things. I also felt a responsibility to apply them for the benefit of society.

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.

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.

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 certainly want to continue trying to understand how the global environment functions. The earth as a system is a very complicated one. And to understand it, we need very many disciplines, very many different scientists working together. I want to continue working with my specialty, which is chemistry, with the atmosphere. There is still much to learn about chemical reactions that occur out there in the air, in the atmosphere. So one of my projects now is to really learn more about this pollution that occurs in cities and that is spreading more through the globe. To learn it in enough detail so we can better tackle it, we can better come up with new ways of using energy, for example, that are not so damaging to the environment.

The advice that I would give is try to find something that you like. Try to devote your energies to being very good at it. Try to achieve excellence. Don’t necessarily have as a goal success or getting prizes or whatever, but just doing very good work. And work hard. Keep working at it. Be patient. Realize that you don’t always see the benefits of what you’re doing, short-term. But in the end, the activities that I do, for example, scientific research, can be extremely rewarding. It’s really a very fascinating career.