There’s a quote about nostalgia from one of my favorite television shows, Mad Men. In the scene, Don Draper, the creative director at a Manhattan advertising firm, is trying to sell his pitch to Kodak. He invokes the word nostalgia and explains it like this: “Nostalgia—it’s delicate, but potent. In Greek, ‘nostalgia’ literally means ‘the pain from an old wound’. It’s a twinge in your heart far more powerful than memory alone.” We all have memories from our childhood.

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