I set a rule that people weren't allowed to send good news unless they sent around an equal amount of bad news. We had to get a balanced picture. In fact, I kind of favored just hearing about the accounts we were losing because ... bad news is generally more actionable than good news.

The concept of this so-called "TerraPower reactor" is that you, in the same reactor, you both burn and breed. So, instead of making plutonium and then extracting it, we take uranium - the 99.3 percent that you normally don't do anything with - we convert that, and we burn it.

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

We all have the chance to create a world where extreme poverty is the exception rather than the rule.

AIDS we're - most of these diseases - we are down from the peak. We're down about 40 per cent from the peak and if we got the right vaccines, which are at the early stage of discovering, then the numbers would come down very dramatically. So that's why we talk about it as an emergency.

Innovations that are guided by smallholder farmers, adapted to local circumstances, and sustainable for the economy and environment will be necessary to ensure food security in the future.

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