Well depending on the government, you either work through the government, which is ideal, because then you're strengthening their capabilities, or you work through the non-governmental organizations. It's never easy, and you know, it's just about the very basics of health. This is not hospitals. This is just primary health care [in Africa], the most simple things, and even so, getting the supplies out, getting the trained workers there.

Some people, through luck and skill, end up with a lot of assets. If you're good at kicking a ball, writing software, investing in stocks, it pays extremely well.

Software is different than other products um, partly because it's, it's not physical and, and partly because of its complexity. You can express in software millions of different cases and making sure that you handle all of them correctly is extremely difficult.

In business, the idea of measuring what you are doing, picking the measurements that count like customer satisfaction and performance... you thrive on that.

My son likes to go see mines and electric plants, or the Large Hadron Collider, and we've had a chance to see a lot of interesting stuff.

The willingness to hear hard truth is vital not only for CEOs of big corporations but also for anyone who loves the truth. Sometimes the truth sounds like bad news, but it is just what we need.

The tool that's most associated with the recent progress against malaria is the long-lasting bed net. Bed nets are a fantastic innovation. But we can do even better. We can invent new ways to control the mosquitoes that carry the malaria parasite.