Our world is increasingly transparent and we're out to earn trust. When people shine a light on Walmart and see our decisions - the jobs we create, the activities in our supply chain - we want them to like what they see.

Be courteous to all, but intimate with few, and let those few be well tried before you give them your confidence.

We're at maybe 1% of what is possible. Despite the faster change, we're still moving slow relative to the opportunities we have. I think a lot of that is because of the negativity... Every story I read is Google vs someone else. That's boring. We should be focusing on building the things that don't exist.

I like going to Burning Man, for example. An environment where people can try new things. I think as technologists we should have some safe places where we can try out new things and figure out the effect on society. What's the effect on people, without having to deploy it to the whole world.

I want to push the envelope for what's possible for an innovative company with large resources.

Google will fulfill its mission only when its search engine is AI-complete. You guys know what that means? That's artificial intelligence.