The 180-degree rule is one of the best known rules of film-making. 181-degree rule is my personal set of film-making rules.
Never stop learning. Know the rules and respect them. Bend the rules. Break the rules if necessary. Use the best technology available. Technology does not matter. Contradict yourself. Pour your heart and soul in every project. Use your head. Use your conscience. Collaborate. Be proud of your work. Never stop learning.