Gary Gygax’s 17 Steps to Role Playing Mastery
Note: Italics are quotes by Gygax, contained in the book, Role Playing Mastery.
Step Seventeen - Continue to learn and grow even after you achieve mastery.
Mastery is like any other acquired skill. If you do not continually use and exercise it, the skill will atrophy. But if you remain actively involved in the hobby at the highest level you can attain, you will be pleasantly surprised to find that your level of expertise keeps rising
all the time. The sky is not the limit to mastery, for - as any science fiction enthusiast can tell you - there are infinite worlds left to explore once the sky is left behind.
That last bit seems a little cheesy, but it's actually a neat way for Gygax to end his 17 Steps. He was barely a quarter of the way through the book, but still, it's a nice RPG type of closure.
I agree completely with Gygax here. I used to play Ultimate (Frisbee), competing at the Nationals and Worlds levels. Practice and skill repetition was crucial to excelling. And when I stopped playing competitively and practicing, my game wasn't as sharp out there on the summer league fields.
I'm currently shaking the rust off of my GMing skills after several years of not running (or playing) any campaigns.
The more you play (and run) RPG games, the better you can expect to be at them. Step 12 was Play as Frequently as Possible, which certainly feeds into this Step.