I want people to be entrepreneurs, but I want them to do it for the right reasons, because they think they can change the world, because they think they have got something of value to give to the world. Not because they think they can make a lot of money.

I never had it in mind that I would start a company one day and it would really be successful. I have just been motivated by working on interesting technology

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.

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

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.

I want people to be entrepreneurs, but I want them to do it for the right reasons, because they think they can change the world, because they think they have got something of value to give to the world. Not because they think they can make a lot of money.

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.