So, also, with its institutions. It might be possible to trace the developments of the European states out of the dying Roman Empire, even to watch the patrimony of the Church grow and again vanish, and yet take but little if any account of the Catholic theology. It might be possible to deal adequately with the growth of that system of theology and yet never touch either the Roman or the civil law, even to leave out of our view the canon law itself. In Europe the State may rule the Church, or the Church may rule the State; or they may stand side by side in somewhat dubious amity, supposedly taking no account each of the other. But in Muslim countries, Church and State are one indissolubly, and until the very essence of Islam passes away, that unity cannot be relaxed. The law of the land, too, is, in theory, the law of the Church. In the earlier days at least, canon and civil law were one. Thus we can never say in Islam, “he is a great lawyer; he, a great theologian; he, a great statesman.” One man may be all three, almost he must be all three, if he is to be any one. The statesman may not practice theology or law, but his training, in great part, will be that of a theologian and a legist. The theologian-legist may not be a man of action, but he will be a court of ultimate appeal on the theory of the state. He will pass upon treaties; decide disputed successions; assign to each his due rank and title. He will tell the Commander of the Faithful himself what he may do and what, by law, lies beyond his reach.