In the past, people have looked at photos as a record of memory. The focus has been on the past tense. With Instagram, the focus is on the present tense.

On the intimate relationships, I'd say you can be someone who wouldn't normally get attention in traditional media and come onto Instagram and build this massive following.

Instagram was created because there was no single place dedicated to giving your mobile photos a place to live and to be seen.

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.

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 always look toward teens on Instagram to really understand what's going on. For some reason, when you're a teen, you just understand the world better than anyone else.

I was never as focused in math, science, computer science, etcetera, as the people who were best at it. I wanted to create amazing screensavers that did beautiful visualizations of music. It's like, "Oh, I have to learn computer science to do that."