Many companies aspire to change the world. But very few have all the elements required: talent, resources and perseverance. Microsoft has proven that it has all three in abundance.

What was true then and what is true now is that we create technology so others can create more technology.

You renew yourself every day. Sometimes you're successful, sometimes your not, but it's the average that counts.

I marvel every day at how people can excel - and that’s what really gets me going.

Finally, I truly believe that each of us must find meaning in our work. The best work happens when you know that it's not just work, but something that will improve other people's lives.

Our first-party devices will light up digital work and life. Surface Pro 3 is a great example -- it is the world's best productivity tablet. In addition, we will build first-party hardware to stimulate more demand for the entire Windows ecosystem. That means at times we'll develop new categories like we did with Surface. It also means we will responsibly make the market for Windows Phone, which is our goal with the Nokia devices and services acquisition.

If you are going to have a risk-taking culture, you can't really look at every failure as a failure, you've got to be able to look at the failure as a learning opportunity.