Build a platform - prepare for the unexpected...you' ll know you're successful when the platform you've built serves you in unexpected ways.

I was raised with the notion that you can do pretty much do anything you want. I always kind of just went ahead and tried things.

I've been asked before, "Who are your heroes?" and these types of questions. I always find it hard to identify a single person or a single book or this sort of thing. I've always been forward looking. I was raised with the notion that you can do pretty much anything you want. You're able to accomplish anything you set out to accomplish. I was given a sense of confidence and I never really felt the need to - or I've never had the benefit, I should probably say - of being inspired by outside heroes.

In the same way that you're driven in your business to keep innovating - Facebook is a wonderful example of constant innovation - think about doing that in philanthropy.

Whatever future you're building, don't try to program everything.

When I started eBay, it was a hobby, an experiment to see if people could use the Internet to be empowered through access to an efficient market. I actually wasn't thinking about it in terms of a social impact. It was really about helping people connect around a sphere of interest so they could do business.

What we say here every day is that our success is really based on our members' success, our community's success. We've created an infrastructure and laid some basic ground rules to create this marketplace.