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

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.

I always kind of just went ahead and tried things.

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

You should pursue your passion. If you're passionate about something and you work hard, then I think you'll be successful. If you start a business because you think you're going to make a lot of money at it, then you probably won't be successful, because that's the wrong reason to start a business. You have to really believe in what you're doing, be passionate enough about it so that you will put in the hours and hard work that it takes to actually succeed there, and then you'll be successful.

We ought to be looking at business as a force for good.

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.