This is good for consumers; it's just a lot harder to do when you're flying an airplane as fast as these companies are flying and you want to change the engine at the same time. We have to get it right.

There's a big difference in doing it in scale and in respecting users' privacy. When you do this with 250m people or more in multiple languages, you really want to make it secure.

The good parts about being a public company are increased discipline, increased execution and increased transparency to make sure that you are really building a company for a hundred years.

The two events were probably unrelated, but both jolted Dave the way a sudden air pocket reminds nervous passengers that they’re soaring above the clouds in a pressurized metal tube.

I think good companies can navigate being public and doing the right things for their customers.

I watched the shadow of our plane hastening below us across hedges and fences, rows of poplars and canals … Nowhere, however, was a single human being to be seen. No matter whether one is flying over Newfoundland or the sea of lights that stretches from Boston to Philadelphia after nightfall, over the Arabian deserts which gleam like mother-of-pearl, over the Ruhr or the city of Frankfurt, it is as though there were no people, only the things they have made and in which they are hiding. One sees the places where they live and the roads that link them, one sees the smoke rising from their houses and factories, one sees the vehicles in which they sit, but one sees not the people themselves. And yet they are present everywhere upon the face of the earth, extending their dominion by the hour, moving around the honeycombs of towering buildings and tied into networks of a complexity that goes far beyond the power of any one individual to imagine, from the thousands of hoists and winches that once worked the South African diamond mines to the floors of today's stock and commodity exchanges, through which the global tides of information flow without cease. If we view ourselves from a great height, it is frightening to realize how little we know about our species, our purpose and our end, I thought, as we crossed the coastline and flew out over the jelly-green sea.