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.

Money has no utility to me beyond a certain point.

When you develop software, the people who write the software, the developers are the key group but the testers also play an absolutely critical role. They're the ones who ah, write thousands and thousands of examples and make sure that it's going to work on all the different computers and printers and the different amounts of memory or networks that the software'11 be used in. That's a very hard job.

I would certainly use my voice to try and avoid anything that undermines confidence, so that parents are using vaccines fully.

The world today has 6.8 billion people...that's headed up to about 9 billion. If we do a really great job on vaccines, health care, reproductive health services, we could lower that by perhaps 10 to 15 percent.

When you want to do your homework, fill out your tax return, or see all the choices for a trip you want to take, you need a full-size screen.

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