It would be incredibly presumptuous and self-serving of me to believe that Facebook was the end of history. The only way it could possibly be the end of history is if it becomes some sort of artificial super intelligence that takes over the world.

I've been doing a hybrid of investing and entrepreneurship, which I think initially I wasn't set out to do. But I realized it fit my personality.

I lived on couches for something like six months. I had no home. I was totally broke. I would stay at a friend's house for two weeks, then move because I didn't want to become this permanent mooch.

Gray hats are the ones who think they're doing good, but they're not. You learn that when the FBI shows up on your doorstep.

Little startups are ridiculously overfunded.

If I were worried about my reputation, I wouldn't do anything with start-ups

A million dollars isn’t cool. You know what’s cool? A billion dollars.