Gygax

Roll 3d6 six times and record the results. You get a number of strength counters equal to one of the results. Repeat this process for dexterity, constitution, intelligence, wisdom and charisma. Choose a race you dream to be, a profession you dream to have, and a background you wish you grew up with. Gather all cards on the table and throw them in a pit, then play Dungeons and Dragons.
The secret we should never let the gamemasters know is that they don't need any rules.