Now we've got that [children's death rate] down to about 5 percent, so we've more than cut it in half, and that's because we're getting vaccines out, economic improvement also helps there, but the vaccines are why we've seen an acceleration in getting that down.

Online education is pretty special for two reasons. One is that you can get the very best lecture in the world and wherever you are, whenever you want, you can connect to that lecture. The other is this interactivity, where if you know a topic, you can kind of skip over it. Or if you're confused about it, [the area] where you're confused can be analyzed by software.

I don't like typing messages on my phone. Some people get used to 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.

I don't think there's anything unique about human intellience. All the nuerons in the brain that make up perceptions and emotions operate in a binary fashion.

The present and future of knowledge attainment and essential business skills.

Teams should be able to act with the same unity of purpose and focus as a well motivated individual.