We know cancer is caused ultimately via a link between the environment and genes. There are genes inside cells that tell cells to grow and the same genes tell cells to stop growing. When you deregulate these genes, you unleash cancer. Now, what disrupts these genes? Mutations.

I think the cardinal rule of learning to write is learning to read first. I learned to write by learning to read.

The history is important because science is a discipline deeply immersed in history. In other words, every time you perform an experiment in science or in medicine, what you're actually doing is you're answering someone, answering a question raised by someone in the past.

Writing anything as an expert is really poisonous to the writing process, because you lose the quality of discovery.

There are those whose sole claim to profundity is the discovery of exceptions to the rules.

The standard model of particle physics says that the universe consists of a very small number of particles, 12, and a very small number of forces, four. If we're correct about those 12 particles and those four forces and understand how they interact, properly, we have the recipe for baking up a universe.

I have a B.S. in Biology from MIT, an M.Sc. in Human Biology and a Ph.D. in Biological Anthropology from Oxford University, and an M.D. from Harvard Medical School. I never intended for so many degrees, but I enjoyed getting them all.

I am quite a fitness freak. I may not have the time to sleep, but a workout is a must. I have even set up a small personal gym on the sets.