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.

When I started on YouTube, no one talked about getting famous on the Internet or getting discovered on YouTube. I didn't even know it was a possibility.

Chart positions are for people with manbags who get to work at 11 A.M. because they've been at a digital meeting.

From analog film cameras to digital cameras to iPhone cameras, it has become progressively easier to take and store photographs. Today, we don't even think twice about snapping a shot.

Because primarily of the power of the Internet, people of modest means can band together and amass vast sums of money that can change the world for some public good if they all agree.