Microloans enable the poor to lift themselves out of poverty through entrepreneurship.

You’re able to accomplish anything you set out to accomplish.

I was just pursuing what I enjoyed doing. I mean, I was pursuing my passion.

I've got a passion for solving a problem that I think I can solve in a new way. And that maybe it helps that nobody has done it before as well.

You’ll fail at some things, that’s a learning experience that you need so that you can take that on to the next experience... What you learn from those challenges and those failures are what will get you past the next ones... I was the pretty consistent bull and the cheerleader on eBay actually.

In order to access private capital, you have to provide competitive return on investment. In order to give competitive returns to investors, you've got to operate on a profitable basis and be thinking of yourself as a business.

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.