Every photo you take communicates something about a moment in time - a brief slice of time of where you were, who you were with, and what you were doing.

In my fourth grade classroom, I even instituted a government structure, because I was really interested in people having positions and there being law.

If you've got an idea, start today. There's no better time than now to get going. That doesn't mean quit your job and jump into your idea 100 percent from day one, but there's always small progress that can be made to start the movement.

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.

What people tell you and how they act is very, very different sometimes.

Obviously, being the CEO, there are a lot of eyes on what you do and what you post and how you post, and I think one of the challenges of Instagram in general is that, as we get bigger, there are just more voices in the room, more eyes on everyone's accounts.

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