If I was down to the last dollar of my marketing budget I'd spend it on PR!

Playing Bridge is a pretty old fashioned thing in a way that I really like... I do the dishes every night - other people volunteer but I like the way I do it.

Software is definitely engineering. It's different in that we take on novel tasks every time. It's not like building a certain bridge that is virtually identical to some previous bridge or some previous building.

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.

By helping us to be more productive, technology lets us to spend less time focusing on survival, and more on solving other challenges.

Who decides what's in Windows? The customers who buy it.

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.