If you're worried about putting food on the table or putting a roof over your head, that stress is definitely will contribute to unhappiness, but once you have your basic needs met then incremental money.

I'd rather spend money on things that improve the customer experience than on marketing.

To WOW, you must differentiate yourself, which means do something a little unconventional and innovative. You must do something that’s above and beyond what’s expected. And whatever you do must have an emotional impact on the receiver.

I think the most important thing is just if you hire people whose personal values match the corporate core values - and not just the stated ones.

A lot of people realize "I don't have to work in this job that I'm miserable at every year, or every day, and I don't have to live in, for example, New York City where it's super expensive and if I live somewhere else that is less expensive and could pursue my passion like, I can afford to do that."

I thought about how easily we are all brainwashed by our society and culture to stop thinking and just assume by default that more money equals more success and more happiness, when ultimately happiness is really just about enjoying life.

At Zappos, one of our core values is to Pursue Growth and Learning. In the lobby of our headquarters, we have a giving library where we give away books to employees and visitors that we think will help with their growth, both personally and professionally. I can't wait to add The Compound Effect to our library.