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

With Instagram, the focus is on the present tense.

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.

I have a pretty random life. I run a business and go all over the world doing things for that business, things that are fairly orthogonal. But my job is to run my company, not to be the best Instagrammer. I'll let other people be awesome at it.

When people say that college isn't worthwhile and paying all this money isn't worthwhile, I really disagree. I think those experiences and those classes that may not necessarily seem applicable in the moment end up coming back to you time and time again.

Having a company that's successful is a wonderful platform to do new things. You don't have to raise money for it; you can take profits from the company and pump them into new business.

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