The ground which it vacates is occupied by a new institution, armed with a novel doctrine. If the Church of the Middle Ages was a kind of State, the State of the Tudors had some of the characteristics of a Church; and it was precisely the impossibility, for all but a handful of sectaries, of conceiving a society which treated religion as a thing privately vital but publicly indifferent, which in England made irreconcilable the quarrel between Puritanism and the monarchy. When the mass had been heated in the furnace of the Civil War, its component parts were ready to be disengaged from each other. By the end of the seventeenth century the secular State, separate from the Churches, which are subordinate to it, has emerged from the theory which had regarded both as dual aspects of a single society. The former pays a shadowy deference to religion; the latter do not meddle with the external fabric of the political and social system, which is the concern of the former. The age of religious struggles virtually ends with the Treaty of Westphalia in 1648. The age of the wars of economic nationalism virtually begins with the war between England and Holland under the Commonwealth and Charles II. The State, first in England, then in France and America, finds its sanction, not in religion, but in nature, in a presumed contract to establish it, in the necessity for mutual protection and the convenience of mutual assistance. It appeals to no supernatural commission, but exists to protect individuals in the enjoyment of those absolute rights which were vested in them by the immutable laws of nature. “The great and chief end of men uniting into commonwealths and putting themselves under government is the preservation of their property.”[I-6]