" Many people today inside and outside the region are aware that many regimes, particularly in the Arab world, are cruel dictatorships unconstrained by any sense of higher law or justice.6 Westerners often think that the fusion of church and state is intrinsic to Islam while being foreign to Christian Europe, and that the kind of theocratic regime set up in Iran after the 1979 revolution somehow constitutes a reversion to a traditional form of Muslim rule. None of this is accurate. The emergence of modern Muslim dictatorships is a result of the accidents of the region’s confrontation with the West and subsequent transition to modernity. Political and religious authority were frequently united in Christian Europe. In the Muslim world, they were effectively separated through long historical periods. Law played the same function in Muslim lands that it did in Christian ones: acting as a check—albeit weaker—on the power of political rulers to do as they pleased. Rule of law is basic to Muslim civilization, and in fact defines that civilization in many respects. "
― Francis Fukuyama , The Origins of Political Order: From Prehuman Times to the French Revolution