You always want to quit while you are ahead. You don't want to be like a fighter who stays too long in the ring until you're not performing at your best.
Clint EastwoodThere's something about the first time an actor runs the material over his or her face you know when they kind of run it through their eyes and you see the thing and there is little imperfections in it and not every line is delivered perfectly, and it doesn't have that mechanical feeling.
Clint Eastwood