"My mom started an air-freight company; my grandmother built a golf course. I have a certain degree of entrepreneurial risk-taking in my family history. Maybe that eventually rubbed off on me a little bit."

"Going public is 18-month process, while an acquisition is a 6-month process. Going public means going under so much scrutiny, regulatory approval, auditing, magnified 10 times. Having the stomach to do that isn't necessarily in my DNA. My DNA is building a product and a service."

"It's not 100 per cent clear to me what's working about Snapchat."

"There's a certain degree of speculation that goes into valuations. In so far as the market supports a valuation, everyone who gets a great one deserves it, but they should also be cautious because that speculation is temporary. I saw Yahoo go from $100 billion to $10 billion. It's not a long-term measure."

"So that ideas of sort of relaxed symmetry have been something for years that I have been concerned with because I think that symmetry is a neutral shape as opposed to a form of design."

"Death does not concern us, because as long as we exist, death is not here. And when it does come, we no longer exist."

"Ultimately, I'm a mess. I don't mean I'm a mess, like, emotionally - I mean, I think probably everybody's a mess. David's a mess. But. I'm talking about... I'm messy."

"I try to forget about the expectation that's out there and the audience listening for the next thing so that I'm not trying to please them. I've spent a huge amount of time not communicating with those folks and denying that they exist."