We're thrilled to join Google. With their support, Nest will be even better placed to build simple, thoughtful devices that make life easier at home, and that have a positive impact on the world.

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.

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.

I started designing the greenest the most connected home before the iPhone and the iPad.

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.

Every team member who brings intelligence, experience and passion to their creations should be called an artist or designer.

People buy products, and they want to understand what those things are and how they are applicable to their life.