Vaccines are extremely well tested; their safety is well understood. The false allegations about vaccines causing autism have been disproven. But there are still echoes out there confusing people.

Patience is a key element of success.

The year I was born, 1955, the first big disease-eradication program in the world was declared for malaria. After about a decade of work, they realized that, at least in the tropical areas, they did not have the tools to get it done.

WWW? Nice toy, but what a waste of time.

The malaria parasite has been killing children and sapping the strength of whole populations for tens of thousands of years. It is impossible to calculate the harm malaria has done to the world.

When you are failing, you are forced to be creative, to dig deep and think, night and day.

The most important thing was the creation of a... a standard, where hundreds of companies build hardware that can all run the same software.