"What advice would you give your sixteen-year-old self?" I saw that headline somewhere, and it got me thinking. At sixteen, I was a rule follower. I got good grades, because I did what teachers asked me to do. I assumed if I continued down the path the experts had laid out, all would be well. It took me a long time to discover this: The ten commandments were brought down from the mountain on a stone tablet; all other rules were made by people, and people are fallible. Now don't get me wrong. Rules and tradition are important. The only way to make progress in society is to build on the experience of those who came before us. It's a sign of wisdom to listen to those who have been down the path and can give us the pitfalls and highlights. But nobody knows everything, and if they say they do, they're lying. In college, I continued to follow the rules. If my instructor assigned reading, I read. If the TA rambled incoherently in the 8:30 lecture, I was there, ...