"I think Bitcoin is a very important technology, but it's not a currency."

"I think we should be building things that are hard to do, not just easy things."

"The most important thing for a startup is to have a secret. Something that others don't know."

"I’m not a big fan of the internet. I think it’s a distraction. It’s a toy. It’s not a serious thing. It’s like a glorified fax machine."

"I'm a big believer in radical transparency, but I also think it's important to have secrets."