I believe that every life is valuable. That we can make things better. That innovation is the key to a bright future. That we're just getting started.

Windows 8 is key to the future, the Surface computer.

The key for us, number one, has always been hiring very smart people.

The key thing you can do to reduce population growth is actually improve health.

At every juncture, advanced tools have been the key to a new wave of applications, and each wave of applications has been key to driving computing to the next level.

Software was the key element that would determine how useable and how broadly applicable the machine was.

Learning from mistakes and constantly improving products is a key in all successful companies.

We're no longer in the days where everything is super well crafted. But at the heart of the programs that make it to the top, you'll find that the key internal code was done by a few people who really know what they were doing.