The Three Types of Legitimate Rule
"The Three Types of Legitimate Rule" ("Die drei reinen Typen der legitimen Herrschaft") is an essay written by Max Weber, a German economist and sociologist, explaining his tripartite classification of authority. Originally published in the journal "Preussische Jahrbücher" 187, 1-2, 1922, an English translation, translated by Hans Gerth, was published in the journal "Berkeley Publications in Society and Institutions" 4(1): 1-11, 1958. Weber also refers to the three types of legitimate rule in his famous essay "Politics as a Vocation." According to Weber, beliefs in the legitimacy of a political system go  beyond philosophy and they directly contribute to the state system stability and authority. All rulers have an explanation for their superiority, an explanation that is commonly accepted but during a crisis can be questioned. Weber sees only three categories of legitimation strategies (which he calls "pure types") used to justify the right of rulers to rule: The types of authority change over time, when the ruled are no longer satisfied with the system. For example, after the death of a charismatic leader his followers, if they lack the charisma of their predecessor, will try to institute a system based on  tradition or law. On the other hand, these systems can be challenged by the appearance of a new charismatic leader, especially during economic or military crises. These 'pure types' are almost always found in combination with other 'pure types' — for example, familial charisma (important in kingship and the Indian caste system) is a combination of charismatic and traditional elements, while institutional charisma (existing in all church organizations, but absent from a priesthood that fails to develop such an organization) is a mixture of charismatic and legal elements.