I think about the past a lot. Who doesn’t? Of course, like most people I cherish the great memories. And then there are the difficult ones. There’s nothing I can do to change them (Boy, that LIVESTRONG tattoo sure seems like a bad idea now). Few things can amend unresolved issues with others. The only thing the complete past — good and bad — offers is experience. Experience to draw upon, contemplate, and possibly use to become wiser and evolve as a human being. This is true for both business and personal life. Yet, dwelling on the past for too long is one of the most unproductive exercises one can engage in.