Sergey and I founded Google because we're super optimisitc about the potential for technology to make the world a better place. Think about how many people are underserved by transportation today, like those with disabilities, and how self driving cars will transform their lives. Or the wasted time you sit in your car every day commuting to and from work. Or the deaths and injuries that could be avoided.

We should be building great things that don't exist.

Big companies have always needed and cooperated in areas where it made sense.

Most of us carry at least one device, all the time, every day. In fact many of us would feel naked without our smartphone. It's hardly surprising mobile search queries - and mobile commerce - are growing dramatically across the world.

You know what it's like to wake up in the middle of the night with a vivid dream? And you know that if you don't have a pencil and pad by the bed, it will be completely gone by the next morning. Sometimes it's important to wake up and stop dreaming. When a really great dream shows up, grab it.

You never lose a dream, it just incubates as a hobby.

The Web is a vast collection of completely uncontrolled heterogeneous documents.