Learn by doing. Learn through experiences. And this goes back to Steve Jobs' thing - which is the way you open up your knowledge of the world is by discovering it and learning about it, not through books, but by being there.

Google has the business resources, global scale and platform reach to accelerate Nest growth across hardware, software and services for the home globally.

I'm always doubtful. Everything I do is always doubtful. When you're trying to differentiate, there's going to be this gut sense, is this right? If you're not having doubt, then you're not pushing it hard enough, or you're not looking at the details close enough. You need to be feeling that doubt every single day.

When I encounter a problem - something that's not quite right with a product - I enjoy breaking it down in my mind and exploring possible alternative solutions: Why this? Why not that? I apply the latest in technology and design to reinvent that product and solve my frustrations.

We built the iPod in weeks. It had to be what I thought it was going to be because there wasnt time for endless refinements.

Even if you have constrained resources, don't cut corners. People will feel it.

I've been working with contractors designing and building a house on a nonstop basis since I learned about all these systems of audio, construction, electricity, energy, water systems.