Our premise is there are going to be a lot of winners. It's not winner take all. Other people do not have to lose for us to win.

The thing about inventing is you have to be both stubborn and flexible. The hard part is figuring out when to be which.

We also have no incentive compensation of any kind. And the reason we don’t is because it is detrimental to teamwork.

I wanted to project myself forward to age 80 and say, ‘OK, I’m looking back on my life. I want to minimise the number of regrets I have.’ And I knew that when I was 80, I was not going to regret having tried this. I was not going to regret trying to participate in this thing called the Internet that I thought was going to be a really big deal. I knew that if I failed, I wouldn’t regret that. But I knew the one thing I might regret is not ever having tried. I knew that that would haunt me every day.

What's dangerous is not to evolve.

It’s very important for entrepreneurs to be realistic. So if you believe on that first day while you’re writing the business plan that there’s a 70 percent chance that the whole thing will fail, then that kind of relieves the pressure of self-doubt.

Cleverness is a gift, kindness is a choice. Gifts are easy-they're given after all. Choices can be hard.