Facebook is a platform inside a platform.

It is hard to think of practical applications of the black hole. Because practical applications are so remote, many people assume we should not be interested. But this quest to understand the world is what defines us as human beings.

Social is a better way to interact with digital world. It is better than search. Implications for... everything. Total change.

It’s not how much something’s worth today, it’s what it’s worth in five or 10 years.

I'm trying to learn from various corners of the world.

Big Internet companies on average are capable of generating revenue of $1 million per employee, and that compares to 10 to 20 percent of that which is normally generated by traditional offline businesses of comparable size.

There is huge demand for artificial intelligence technologies.