Training the workforce of tomorrow with today's high schools is like trying to teach kids about today's computers on a 50-year-old mainframe.

Kenya’s M-Pesa proves that when people are empowered, they will use digital tech to innovate on their own behalf.

I feel certain that the personal computer is as revolutionary in terms of the way it will change the way we work, learn, and entertain ourselves as any of these previous advances.

Automation applied to an inefficient operation will magnify the inefficiency.

Bioterrorism is like earthquakes, you should think in order of magnitudes. If you can kill 10 people that's a one, 100 people that's a two... Bioterrorism is the thing that can give you not just sixes, but sevens, eights and nines.

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

I’ve been waiting more than 30 years to say this: “Dad, I always told you I’d come back and get my degree.” I want to thank Harvard for this timely honor. I’ll be changing my job next year … and it will be nice to finally have a college degree on my resume.