Financial engineering cannot substitute for operational excellence. I learned that the hard way.

Sears had the best brand in American retail. Somewhere along the way, we lost sight of the customer.

I generated 25% annual returns for a decade. Then I tried to run a retailer. Humility is a lesson, not a choice.

Concentration works in markets. In retail, it's a different game. Customers don't care about your portfolio theory.

I was kidnapped and held for two days. I talked my way out. That's the one negotiation I'll never forget.

Share buybacks are not a substitute for investing in your business. I learned that at Sears.