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.

The old and honorable idea of 'vocation' is simply that we each are called, by God, or by our gifts, or by our preference, to a kind of good work for which we are particularly fitted.

It is unfortunately true that our generation and that of your parents have left you with a big mess that will now be yours to clean up: wars, budget challenges, pollution, global warming, battles of health care, natural disasters. They're all there for you. We're willing those to you. Are you ready?

Self esteem and a healthy body image for people with disabilities are so often hard-fought.

If you only exercise your soloist muscles, the other muscles quickly atrophy.