 Now that said, common law, right? The book by Oliver Wendell Holmes and the common law itself is a real difficult subject. It can take a lifetime to master. To give you an example, in law school, contracts is usually a two semester course, right? Torts is usually a two semester course. Product liability, three semesters if you include product liability upper level. Property, generally a one semester course, but it can be multiple semesters if we include intellectual property rights as well.