In fact, batteries haven't improved over the last 100 years as much as they would need to in order to make that happen. So I'm invested in a lot of battery companies - and there's a lot that exists I'm not in. They're all having a tough time achieving it.

I never took a day off in my twenties. Not one.

We're in a period of uncertainty about [Donald Trump] administration policies and the range of what might happen is particularly higher. I don't think that these R&D and innovation budgets will be substantially reduced.

Our work in global health is about things like cutting childhood deaths, and every year we continue to make progress there.

Started from the chair hop now we here.

I like my job because it involves learning. I like being around smart people who are trying to figure out new things. I like the fact that if people really try they can figure out how to invent things that actually have an impact.

That way you can be certain to learn something you didn't know previously.