"Whenever I'm in theatre situations I will go out of my way not to talk about my father, but in the film world I can be really proud of my family and say, 'You know what: my dad's a really, really famous theatre director,' because nobody has any idea."

"The only limit to human potential is a mind at peace can weather any storm."

"The line between sanity and madness is thinner than we think."

"I mean, we've built a lot of products that we think are good, and will help people share photos and share videos and write messages to each other. But it's really all about how people are spreading Facebook around the world in all these different countries. And that's what's so amazing about the scale that it's at today."

"It is a steadfast truth that reason is the torch that illuminates the dark corridors of superstition."