The stock market has only two rules, both of which are vague and confusing. It is up to you to make them clear and simple to understand.
 Here are the guidelines:
You must write these rules down so that you will not forget them.
You must always follow these rules.
These rules will never change.
You must keep them forever.
These rules are never to be broken.
You must never add to these rules.
 Here are the rules:
 KNOW WHEN AND WHY TO BUY.
KNOW WHEN AND WHY TO SELL.
 Now, take these rules and develop your trading methodology around them. 
“If you don’t like their rules, whose would you use?”  Charlie Brown
“A few strong instincts and a few plain rules suffice us.” Ralph Waldo Emerson
“You have to learn the rules of the game. And then you have to play better than anyone else.”  Albert Einstein