I don't think you should ever start a business and move in a direction where you can't see it becoming a business.

A lot of the earliest Instagram celebrities took really beautiful photos. But you're starting to see a change where it's not about beauty; it's about the story that you tell.

Instagram is a media company. I think we're about visual media.

Focusing on one thing and doing it really, really well can get you very far.

I promise you, a lot of it is luck. But you make your own luck by working really hard and trying lots and lots of things.

The major reason why Instagram works is that you can follow anyone out there and start following their photos immediately.

Above all else, products spread when they're useful and they're usable