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.

What makes eBay successful.. the real value and the real power at eBay is the community. It's the buyers and sellers coming together and forming a marketplace.

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

By building a simple system, with just a few guiding principles, eBay was open to organic growth.

I started eBay as an experiment, as a side hobby basically, while I had my day job.

Be an enzyme - a catalyst for change. As a slogan, I don't know if that's ever going to be right up there with Ich Bin Ein Berliner, or “I Have A Dream,” but there's a lot of truth to it.

Don't let people who you may respect and who you believe know what they're talking about, don't let them tell you it can't be done because often they will tell you it can't be done, and it's just because they don't have the courage to try.