A philosophical attempt to work out a universal history according to a natural plan directed to achieving the civic union of the human race must be regarded as possible and, indeed, as contributing to this end of Nature.
It is strange and apparently silly to wish to write a history in accordance with an Idea of how the course of the world must be if it is to lead to certain rational ends. It seems that with such an Idea only a romance could be written. Nevertheless, if one may assume that Nature, even in the play of human freedom, works not without plan or purpose, this Idea could still be of use. Even if we are too blind to see the secret mechanism of its workings, this Idea may still serve as a guiding thread for presenting as a system, at least in broad outlines, what would otherwise be a planless conglomeration of human actions. For if one starts with Greek history, through which every older or contemporaneous history has been handed down or at least certified; if one follows the influence of Greek history on the construction and misconstruction of the Roman state which swallowed up the Greek, then the Roman influence on the barbarians who in turn destroyed it, and so on down to our times; if one adds episodes from the national histories of other peoples insofar as they are known from the history of the enlightened nations, one will discover a regular progress in the constitution of states on our continent (which will probably give law, eventually, to all the others). If, further, one concentrates on the civic constitutions and their laws and on the relations among states, insofar as through the good they contained they served over long periods of time to elevate and adorn nations and their arts and sciences, while through the evil they contained they destroyed them, if only a germ of enlightenment was left to be further developed by this overthrow and a higher level was thus prepared – if, I say, one carries through this study, a guiding thread will be revealed. It can serve not only for clarifying the confused play of things human, and not only for the art of prophesying later political changes (a use which has already been made of history even when seen as the disconnected effect of lawless freedom), but for giving a consoling view of the future (which could not be reasonably hoped for without the presupposition of a natural plan) in which there will be exhibited in the distance how the human race finally achieves the condition in which all the seeds planted in it by Nature can fully develop and in which the destiny of the race can be fulfilled here on earth.
Such a justification of Nature – or, better, of Providence – is no unimportant reason for choosing a standpoint toward world history. For what is the good of esteeming the majesty and wisdom of Creation in the realm of brute nature and of recommending that we contemplate it, if that part of the great stage of supreme wisdom which contains the purpose of all the others – the history of mankind – must remain an unceasing reproach to it? If we are forced to turn our eyes from it in disgust, doubting that we can ever find a perfectly rational purpose in it and hoping for that only in another world?