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

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

The world runs on luck.

I think not focusing on money makes you sane, because in the long run it can probably drive you crazy.

Every startup should address a real and demonstrated need in the world. If you build a solution to a problem lots of people have, it's so easy to sell your product to the world.

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

Working at a startup to make a lot of money was never a thing, and that's why I decided to just finish up school. That was way more important for me.