I wasn't naturally a scientist, but I was always fascinated by how the world worked and why things were the way they were.

I'm not an academic, but I'm someone who has a great passion for science and wants to convey the idea that science is for everyone.

When I was acting, as a hobby, I would devour popular science books and keep up-to-date about what was going on in the science community. And then, suddenly my hobby became my job. I didn't one day say, "I'm not acting. I'm now going to be a science person."

In my lifetime, the population of the world has doubled.

The thing I loved, particularly, was the mystery of science and the idea that science doesn't know all the answers, but it is a process of finding out. It's not like science will give you the right answer and science knows everything. I love the mysteries of it.

I've never felt scared of flight, ever. It's really weird. I don't know. They stick a gin and tonic in your hands and I just think, "Life is good!"

I was awful at science at school, as a subject, because I didn't have the discipline. But, I was awful at music, as well, and I loved music.