You always hear the phrase, money doesn't buy you happiness. But I always in the back of my mind figured a lot of money will buy you a little bit of happiness. But it's not really true. I got a new car because the old one's lease expired.

Obviously everyone wants to be successful, but I want to be looked back on as being very innovative, very trusted and ethical and ultimately making a big difference in the world.

Once you go from 10 people to 100, you already don’t know who everyone is. So at that stage you might as well keep growing, to get the advantages of scale.

As for "Don't be evil," we have tried to define precisely what it means to be a force for good-always do the right, ethical thing. Ultimately, "Don't be evil" seems the easiest way to summarize it.

We are focused on features, not products. We eliminated future products that would have made the complexity problem worse. We don't want to have 20 different products that work in 20 different ways. I was getting lost at our site keeping track of everything. I would rather have a smaller set of products that have a shared set of features.

Today, if you want to access a typical out-of-print book, you have only one choice - fly to one of a handful of leading libraries in the country and hope to find it in the stacks.

But the vast majority of books ever written are not accessible to anyone except the most tenacious researchers at premier academic libraries. Books written after 1923 quickly disappear into a literary black hole.