In almost every area of human endeavor, the practice improves over time. That hasn't been the case for teaching.

Whenever you have multiple devices including multiple PCs that you want to share information with, it's always been a bit complicated.

I don't think I would have spent time learning about the immune system if understanding vaccines weren't something I considered very important.

I think when smallpox was eliminated, the whole world got pretty excited about that because it’s just such a dramatic success.

Does the e-mail say it's about 'enlargement' - that might be spam.

We are in the throes of a transition where every publication has to think of their digital strategy.

Almost every way we make electricity today, except for the emerging renewables and nuclear, puts out CO2. And so, what we're going to have to do at a global scale, is create a new system. And so, we need energy miracles.