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.

People interact with their phones very differently than they do with their PCs and I think that when you design from the ground up with mobile in mind, you create a very different product than going the other way.

I’m always in awe of people who are artists in their fields – people who understand that simply by taking ideas and translating them into reality, they’ve created value in the world.

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.

We're just taking people and shifting them from taking photos anyway to taking them on Instagram.

Teens just understand the world in ways I don't think any of us adults do.

If you've got an idea, start today. There's no better time than now to get going.