Our sales are growing so much. I think people are optimistic about the future of what their life can look like.

The most important single thing is to focus obsessively on the customer. Our goal is to be earth's most customer-centric company.

All businesses need to be young forever. If your customer base ages with you, you're Woolworths.

You know, if you make a customer unhappy they won't tell five friends, they'll tell 5,000 friends. So, we are at a point now where we have all of the things we need to build an important and lasting company, and if we don't, it will be shame on us.

If you're not doing something that people will remark on, then it's going to be hard to generate word of mouth.

There are two ways to extend a business. Take inventory of what you're good at and extend out from your skills. Or determine what your customers need and work backward, even if it requires learning new skills. Kindle is an example of working backward.