For every Mark Zuckerberg and Facebook, there's 30 other entrepreneurs that started their business after working for several years.

Successful entrepreneurs are pretty methodical about the problem they're trying to solve.

Florence Nightingale. She is one of the most dynamic social entrepreneurs in history.

I'm not as smart as I think I am.

If you peek behind the curtain at any type of company, you'll see that things are far less organized than you'd expect.

We have never met with politicians. I don't know the first thing about how to get heard. My suspicion is that it's to donate a lot of money.

The rules of optical dispensing vary from state to state. Dispensing eyeglasses is not that complicated, and even if it were complicated, there should be uniform rules.

Brands are only powerful if they're real and authentic.

Often, companies are trying to chase growth and get into other categories or go international too quickly, and they can get in trouble doing that.

What happens when kids don't have glasses - they get bored in class. They disengage and they may be disruptive. They may be misdiagnosed for A.D.D. or put in special needs classes.

When we were creating Warby Parker, for us it was about having a positive impact on the world and having a strong social mission.

One of the core values of the startup world is that you must have a list of core values. Like all abstract ideas, they're easy to dream up and tricky to implement.

Warby Parker designs experiences, not products.

I believe that the concept of 'design' encompasses every aspect of customers's exposure to a brand, from the moment they hear about us to the first time they visit our store to the process of ordering and anticipating the arrival of their glasses.

We've built a company that distributes a pair of eyeglasses to someone in need for every pair sold; that purchases carbon offsets; and that hosts mentoring programs at the office.

Millennials in particular get a lot of flack for their supposed entitlement and narcissism, but these evaluations have never matched my experience with hiring young people at Warby Parker.

In general, obsolete technology is obsolete for a reason. Monocles are no exception.

One of my favorite products at Warby Parker also happens to be our worst-selling item: the monocle.

Hackathons are an amazing way to engage the team, foster collaboration, and knock out great work.

The word 'hackathon' was born out of 'marathon' for a reason. It's exhausting.

The basic idea of a hackathon is to erase all routine obligations for the day so that employees can clear a mental space for creativity.

All those articles that scold Millennials for their supposed entitlement? Forget them. Millennials are great employees.

Building a consistent experience and firm identity was instrumental in our ability to swiftly build our online presence, open four stores as well as a mobile store in a converted yellow school bus, and launch six shops-in-shops.

From the beginning, we believed that it was possible to develop direct relationships with customers at a relatively cheap cost, and our plan was to build a lifestyle brand that was also an Internet company - a rarity for eyewear.