After a discussion with somebody i think :
Rules are everywhere!! Damn they even are infesting your favorite hobby, drawing (what a pity)
1/ Rules have to be known, learned.
2/ Rules have to be understood and used well and often.
3/ Rules have to be mastered.
4/ Finally, rules have to be forgotten.
IN THIS ORDER !
Listening to: czech philharmonic orchestra
Reading: R.Williams animator's survival kit
Watching: nude people