Well-spent aid money is saving lives for a few thousand dollars per life saved.

I admire leaders in science, people who really figure things out like Richard Fineman or people who work on vaccines, tons of people working on [the] HIV vaccine. There's leaders in business, people like Warren Buffett, who've got a certain approach they take that are pretty amazing. There [are] product innovators like Steve Jobs was, where he gets behind a concept and does a fantastic job.

Flying cars are not a very efficient way to move things from one point to another.

There's always been a lot of information about your activities. Every phone number you dial, every credit-card charge you make. It's long since passed that a typical person doesn't leave footprints.

When we face a choice between adding features and resolving security issues, we need to choose security.

Software will get to be somewhat more mature, ah, but it will never be as predictable as most areas of engineering.

Everyone knows about Black Friday and Cyber Monday. Now help me spread the word about Giving Tuesday!