No matter what your mission is, have some notion in your head. Forget the model, whether it's government or nonprofit or profit. Ask yourself the more important question: Is my mission improving the world? Are you sure about it? Seek to disconfirm that all the time. And if you can, change your mission.

I think the growing interest in stakeholder capitalism stems from companies genuinely invested in doing good for our world, because it's the right thing to do and because businesses who take this approach are stronger.

I think if you look at people, whether in business or government, who haven't had any moral compass, who've just changed to say whatever they thought the popular thing was, in the end they're losers.

We believe strongly that in the long term, we will be better served - as shareholders and in all other ways - by a company that does good things for the world even if we forgo some short term gains. This is an important aspect of our culture and is broadly shared within the company.

I have always looked at business as an opportunity to make a difference in people's lives.

We're lucky to have a very direct relationship with our users, which creates a strong incentive for us to do the right thing .