The fact that there was no catastrophic pandemic in recent history does not mean there won't be another one. And we are certainly not prepared for the next pandemic.

In this business, by the time you realize you're in trouble, it's too late to save yourself. Unless you're running scared all the time, you're gone.

With tech companies, whoever's the leader is always questioned, you know. They say, 'Is this the end of them?' And - there's more - more times people think that's the case than it really is the case.

I think there will be PCs at every price point.

Whenever you have a few setbacks, the idea that half as many children are dying now as back in 1990 and so... it was over 12 million a year, now it's less than 6 million a year. We have a clear path to get that under 3 million a year and we know what to do. And this generation of young Africans is a very large group.

A company needs to have good business reflexes, to be able to marshal its forces in a crisis or in response to any unplanned event.

We're very enthused about the idea that in the third trimester we actually give the mother a vaccine and her antibodies, the protective things that the immune system makes, actually pass through to the baby, both when the baby is born, and through the mother's milk. Because the baby's immune system is actually not very strong for that first few months, using the mother's immune system to do this - it's a very exciting idea and something that we're investing heavily in.