A lot of great people come to Facebook. In our business, we're about how do we help connect our companies to great people across all levels.

When I started in the business in 1999 and 2000, we had companies that were going public in two, three or four years.

There are a lot of people who look great but can't sing.

The thing that we are trying to do at facebook, is just help people connect and communicate more efficiently.

The most important thing for us is investing and making companies great, and then they have all the options they want, whether that's to go public or stay private.

There's a final exam in venture every four to six years. The scary thing is you need to get an 'A' in every discipline. You need to be on generational planning, need to be on great deal flow, need be on great outcomes, you need to be on great company building.