History books are one person’s opinion of what happened. Need proof? Tune in to MSNBC and FOX News reporting on the same stories on the same night, and you’ll get two wildly different interpretations of what happened that day. An event described as a soaring success on one side of the political aisle is often described as a wincing failure on the other.

The very same thing happens with organizations. Is Apple the greatest thing since the light bulb, or the ultimate force for evil? It depends on who is telling the story.

The same is true of your own company. And as a member of the team, one whose success or failure are tied tight to the company’s success or failure, you have every incentive to be a cheerleader for your company.

Do you use your company’s products? If you work for Pepsi, are you serving Coke at the neighborhood barbecue? When you talk about the work your company does, do you share stories of success or failure?

What are the positives you can share with customers? What are the success stories you can tell them, the differences your products and services have made in the lives of others? Of course there are also less flattering stories. Every company has those. But for the company to thrive, and for you to thrive along with it, you want to find and tell the positives.

This isn’t just a job for marketing. It’s everyone’s job to pass along those stories and to institutionalize them. Stories of success, told again and again, are at the heart of every great culture.