"They 'trust me'. Dumb f***s."

"I think that we have a responsibility to make sure that our products are being used for good."

"The way that you get to really big numbers is by doing things that are not just incremental changes."

"You have a lot of privacy controls, and we try to make it so that you can share with exactly the people you want to share with."

"We just did this for fun. We didn't think it was going to be a company."