Whether you’re running just for recreation or you have goals to break personal bests, success (however you may define it) will require some trial and error; figuring out what does and doesn’t work for you. This applies to everything from your training program and apparel to nutrition and recovery techniques. That said, there are also some universal running truths; rules or guidelines that, for the most part, are essential for successful running. And unfortunately, many runners don’t learn these lessons until long after they’ve been involved in the sport. Ask any runner what they wish they had known before they started running and these are a few of the answers you might hear.