We have this culture valued at Uber, which we call the champions' mind-set. And champions' mind-set isn't always about winning. It's about putting everything you have on the field, every ounce of passion and energy you have. And if you get knocked down, overcoming adversity.

At Uber, we say, 'Always be hustling.' Even if you are an introvert and you haven't got hustle in you, you better get a co-founder who does. And if you haven't got enough hustle to find a co-founder who's got hustle, it's going to be tough. You've got to have a little hustle in you.

Uber exists because of mobile telephones.

Safety is number one at Uber... so we make sure the system is in place so riders get the safest ride possible.

Uber riders are the most affluent, influential people in their cities.

What we like to say is that the vision for Uber is the cross between lifestyle and logistics.