The more people are involved with, concerned by and capable of changing how political power is exercised over their lives, the more acceptable and legitimate the law becomes to the people. There is no clear legal definition of the civil society, and of the institutions it includes. Most of the institutions and bodies who try to give a list of institutions exclude the political parties. In order to maintain professionalism, the practice of law is typically overseen by either a government or independent regulating body such as a bar association, bar council or law society. There are few titles of respect to signify famous lawyers, such as Esquire, to indicate barristers of greater dignity, and Doctor of law, to indicate a person who obtained a PhD in Law. One definition is that law is a system of rules and guidelines which are enforced through social institutions to govern behaviour.