This notion of universal Windows apps is a very powerful concept because we're now aggregating the 300-plus-million-socket run rate of Windows into one opportunity for our developers.

Be passionate and bold. Always keep learning. You stop doing useful things if you don't learn.

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

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.

Technologies will come and go, so you need to be able to both ask and answer the question: What do you do as a company, why do you exist?

In the post-Snowden world, you need to enable others to build their own cloud and have mobility of applications. That’s both because of the physicality of computing–where the speed of light still matters–and because of geopolitics.

One of the key things in the tech business in particular is that you need to be able to push boundaries.