It's always too early to quit.
The dog that trots about finds a bone.
What you do today can improve all your tomorrows.
Know or listen to those who know.
Expect problems and eat them for breakfast.
Never complain and never explain.
Quality is not an act, it is a habit.
Leap, and the net will appear.
Begin to be now what you will be hereafter.
After a storm comes a calm.
I think if you're a competent actor with a good imagination, and if it's on the page, it makes your job a lot easier.