In entering upon this course of lectures, I may fairly presume, at least, the existence in those of my hearers who are not acquainted with philosophy, of a belief in Reason, a desire, a thirst for acquaintance with it. It is, in fact, the wish for rational insight, not the ambition to amass a mere heap of acquirements, that should be presupposed in every case as possessing the mind of the learner in the study of science. If the clear idea of Reason is not already developed in our minds, in beginning the study of universal history, we should at least have the firm, unconquerable faith that Reason does exist there, and that the world of intelligence and conscious volition is not abandoned to chance, but must show itself in the light of the self-cognizant Idea. Yet I am not obliged to make such a preliminary demand upon your faith. What I have said thus provisionally, and what I shall have further to say, is, even in reference to our branch of science, not to be regarded as hypothetical, but as a summary view of the whole, the result of the investigation we are about to pursue--a result which happens to be known to _me_, because I have traversed the entire field. It is only an inference from the history of the world that its development has been a rational process, that the history in question has constituted the rational necessary course of the World-Spirit--that Spirit whose nature is always one and the same, but which unfolds this, its one nature, in the phenomena of the world's existence. This must, as before stated, present itself as the ultimate result of history; but we have to take the latter as it is. We must proceed historically--empirically. Among other precautions we must take care not to be misled by professed historians who (especially among the Germans, and those enjoying a considerable authority) are chargeable with the very procedure of which they accuse the philosopher--introducing _a priori_ inventions of their own into the records of the past. It is, for example, a widely current fiction that there was an original primeval people, taught directly by God, endowed with perfect insight and wisdom, possessing a thorough knowledge of all natural laws and spiritual truth; that there have been such or such sacerdotal peoples; or, to mention a more specific claim, that there was a Roman Epos, from which the Roman historians derived the early annals of their city, etc.... I will mention only two phases and points of view that concern the generally diffused conviction that Reason has ruled, and is still ruling in the world, and consequently in the world's history; because they give us, at the same time, an opportunity for more closely investigating the question that presents the greatest difficulty, and for indicating a branch of the subject which will have to be enlarged on in the sequel.