To be a good professional engineer, always start to study late for exams because it teaches you how to manage time and tackle emergencies.

I like the idea of putting your Christmas wish list up and letting people share it.

You wish that you could move more rapidly and you have setbacks. You know, the AIDS epidemic was a huge setback for Africa, and it's only through generosity that we've avoided that just completely crippling an entire generation there.

There is no author whose books I look forward to more than Vaclav Smil.

When making choices, or setting policies about the economy, education or medicine, society is best served by electing people who are particularly hardworking, intelligent and interested in long-term thinking.

We all need people who will give us feedback. That's how we improve.

Helping convene global stakeholders to establish a set of measurable, actionable and consensus-built goals focused on extreme poverty is invaluable.