A lot of people don’t just go ahead and try things. They’ll have an idea and they’ll say — they’ll convince themselves or other people will convince them that it can’t be done. You know, one or the other. Actually I think that the first is even more dangerous and more serious. It’s convincing yourself that it can’t be done.

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.

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

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.

When you don't know what to expect, prepare for the unexpected.

I always kind of just went ahead and tried things.

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.