My goal is to simplify complexity.

I was fascinated with jeans, because you can impress your life upon the jeans you wear. The way you sit imprints on the jeans.

Build what you want to see in the world.

Twitter was around communication and visualizing what was happening in the world in real-time. Square was allowing everyone to accept the form of payment people have in their pocket today, which is a credit card.

From a product standpoint, we want every touch point to feel magical. It inspires trust.

I think Twitter is the future of communications and Square will be the payment network.

Making something simple is very difficult.