The human race, then, as it had a beginning, so also will it have an end; it will not continue forever in this present form, but must eventually come to a termination. But, to speak according to the measure of a divine chronology, where a thousand years are but as one day, who can say, who shall dare, off-hand, to decide whether six or seven of these great days of God are fixed for its duration? Enough to know that we stand on the borders of the fourth age, and on the passage from the third to the fourth. And not unimportant is it, on the other hand, for the clear understanding of the whole, to form a right conception of each of these, its great divisions and epochs. The first age is made up of the twenty-five centuries of obscure primeval history. The second, which we called the age of preparation, is formed by the fifteen hundred years which we reckon from the end of the first up to the center and turning-point of the history of the world as known to us, and from which modern history takes its commencement. Even in the oldest traditionary history of the Gentile nations of antiquity we do not meet with any statements that can be relied upon, or any tenable data beyond, if indeed so far back as, the fifteenth century before the epoch of the commencement of modern history. The fifteen centuries which follow this epoch form the third age, in which this principle of a new life in the spiritual, moral, and political world had to develop and completely to unfold itself. In the last Lecture I also reckoned in this period the sixteenth, seventeenth, and eighteenth centuries of our era. But if it seems to any more advisable to consider these as the introductory portion of the fourth and subsisting age, there is nothing positively to condemn such a mode of reckoning; only, for my part, I can not but regard it as less correct and more inaccurate than the one which I have proposed. In one case as well as the other the same important consideration will be involved. Reckoning from some point or other within these last forty years, we have, it must be acknowledged by all, entered upon a grand and decisive epoch in the history of the world; and our attention can not be too often or too strongly directed to the fact, that we stand at the critical point of transition from one great period to another.