Go after the customers that are working in the future, but haven't totally lost their minds.

My co-founder Dylan Smith and I left our junior year of college to move to the Bay Area. To the horror of our friends' parents, we actually had two other friends drop out of college to work on the product. The four of us were just working non-stop growing Box.

My mom is proud of me. But she might not be too happy about the hours I keep or how little I eat. I wake up so late that it would be inappropriate to have breakfast. At most, I will have a snack in the day and dinner. I realize that it's not the healthiest way to live, but it's all I really have time for.

All of a sudden, if you think about the entire ecosystem of connected devices that can pull down information, access content and allow me to share and work and communicate, the vast majority now are not Windows computers. They are iPhones. They are iPads. They are Android devices.

The most customer-centric organizations can answer any question by deciding what's best for the customer, without ever having to ask.

Startups often win because it's easier to see what comes next when you don't have to worry about maintaining what came last.

You can look at the cost structure of an incumbent company and discover: where are they not going to be able to drop their prices... because that business model is fundamental to the existence of the company.