I studied every thing but never topped.... But today the toppers of the best universities are my employees

If you think of global public goods like polio eradication, the kind of risk-taking new approach, philanthropy really does have a role to play there, because government doesn't do R&D about new things naturally as much as it probably should, and so philanthropy's there.

Given how few young people actually read the newspaper, it's a good thing they'll be reading a newspaper on a screen.

Life is not a continuous process, there's some sort of finite number of achievements that defines your life.

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.

The ideal thing would be to have a 100 percent effective AIDS vaccine. And to have broad usage of that vaccine. That would literally break the epidemic.

Most people overestimate what they can do in one year and underestimate what they can do in ten years.