In order to give itself body, the Philosophy of history has recourse to analogy. This is a legitimate process of thought, which, in its search for truth, seeks analogies and harmonies. But it is legitimate, as we know, only on condition that the analogy does not remain a merely heuristic hypothesis, but is effectively thinkable and thought. Now the concepts that the Philosophy of history deduces cannot be effectively thought, because they are void; they are neither pure concepts nor pure representations, but an arbitrary mixture of the two forms, and therefore contradiction and vacuity. Thus the analogies of which the Philosophy of history avails itself, are false analogies, that is to say, metaphors and comparisons, transformed into analogies and concepts. It will declare, for instance, that the Middle Ages are the negation of ancient civilization, and that the modern epoch is the synthesis of these two opposites. But ancient civilization is nothing but an unending series of facts, of which each is a synthesis of opposites, real only in so far as it is a synthesis of opposites. And between ancient civilization and the Middle Ages, there is absolute continuity, not less than between the Middle Ages and the modern epoch. Facts cannot stand to one another as opposite concepts, because they cannot be opposed to one another as positive and negative. The fact that is called positive is positive-negative and so, in like manner, is that which is called negative. It will further declare (always by way of example) that Greece was thought and Rome action, and the modern world is the unity of thought and action. But in reality, Greek life was thought and action, like that of Rome, and like modern life. Every epoch, every people, every individual, every instant of life is thought and action, in virtue of the unity of the spirit, whose distinctions are never broken up into separate existences. The affirmations that belong to the Philosophy of history are all of this kind, and when they are not of this kind, it means that they do not belong to the essence of the Philosophy of history.

Distinction between the Philosophy of history, and the books thus entitled. Philosophical and historical merits of these.

The last-mentioned case occurs frequently in books that bear the title of Philosophy of history. These certainly cannot be considered to have been refuted when the concept of that science has been refuted. Science is one thing and the book another. The error of a false attempt at science is one thing and the value of books, which usually (especially with great thinkers and writers) have deeper motives and more valuable parts, is another. Among books upon the philosophy of history are numbered some masterpieces of human genius,—fountains of truth, at which many generations have quenched their thirst and to which men return perpetually. They have often indeed been marvellous books on history, true history, produced by reaction against superficial, partisan or trifling histories. They have for the first time revealed the true character of certain epochs, of certain events, of certain individuals.[1] The sterile form of duality and opposition between Philosophy of history and simple History, concealed the fruitful polemic of a better history against a worse history. Even the formulae, which were falsely regarded as deductions of concepts (for example, that the Middle Ages are the negation of antiquity and the Renaissance the negation of the Middle Ages, or that the Germanic spirit, from the Reformation to the Romantic movement, is the affirmation of inward liberty, or that Italy of the fifteenth century represents Art, France the State, and so on), were at bottom vivacious expressions of predominant characteristics, by means of which the various epochs and events were portrayed. These expressions and truths could be accepted without there being any necessity for presupposing clear and fixed oppositions and distinctions, or for denying the extra-temporality of spiritual forms. Besides these historical characteristics, discoveries more strictly philosophical appeared for the first time in those books; hence not only do we find in them the first outlines of a Logic of historical science (a Logic of the individual judgment), but also, sometimes in imaginative forms, determinations of eternal aspects of the Spirit, which had previously been unknown or ill-known. Such is the case with the concept of progress and providence, and of that other concept concerning the spiritual autonomy of language and of art, which presented itself for the first time as the discovery of the historical epoch, in which man, wholly sense and imagination, without intelligible genera and concepts, is supposed to have spoken and poetized without reasoning. In an equally imaginary fashion the constancy of the spirit, which eternally repeats itself, also found in those philosophies the formula of the perpetual passing away and returning of the various epochs of civilization. These philosophical truths, like the historical characteristics, must be purged, the first from the representations improperly united with them, the second from the logical character which they wrongly assumed. But they cannot be discarded, unless we are willing to throw away the gold, through our unwillingness to have the trouble of separating it from the dross. And this necessity for purification further confirms the error of the philosophism, since it is the purification of Philosophy and of History from the Philosophy of History.

Philosophy of nature.

Another manifestation of the philosophism, somewhat different from the preceding, is the science which assumes the name of Philosophy of nature. Here it is claimed to deduce, not the historical facts themselves, but the general concepts, which constitute the natural sciences. The philosophy of nature can be considered as the converse error to the empiricist error, which claims to induce philosophic categories a posteriori, whereas this claims to deduce empirical concepts a priori.

Its substantial identity with the Philosophy of history.

But the theoretic content of empirical concepts and of the natural sciences is, as we know, nothing but perception and history. So that, in the final analysis, the Philosophy of nature can be reduced to the Philosophy of history (extended to so-called inferior or subhuman reality), making, like the other, the vain attempt to produce in the void what thought can produce only in the concrete, that is to say, by synthesizing. And that it tends to become a Philosophy of history is also to be seen from its not infrequent hesitances before abstract concepts, or mathematical science, sometimes declaring that the pure abstractions of the intellect must remain such and are not otherwise deducible and capable of being philosophized about. The Philosophy of nature has usually been extended to the field of the physical and natural sciences, including also some parts of mechanics. But it has refused to undertake the deduction of the theorems of geometry and still more the operations of the Calculus.

The contradictions of the Philosophy of nature.

The Philosophy of nature, like the Philosophy of history, has abounded in declarations of the necessity of the historical and empirical method. It has recognized that the physical and natural sciences are its antecedent and presupposition and that it continues and completes their work. But it is not permitted to complete this work because this work extends to infinity. And it would not be able to continue it, save by turning itself into physics and natural sciences, working as these do in laboratories, observing, classifying, and making laws (legislating). Now the Philosophy of nature does not wish to adopt such a procedure, but to introduce a new method into the study of nature. And since a new method and a new science are the same thing, it does not wish to be a continuation of physics and of the natural sciences, but a new science. And since a new science implies a new object, it wishes to give a new object, which is precisely the philosophic idea of nature. This philosophic idea of nature would therefore be constructed by a method which would not and could not have anything in common with that of the empirical sciences. Yet the Philosophy of nature is not able to dispense with the empirical concepts, which it strives to deduce a priori. And here lies the contradictoriness of its undertaking. The dilemma which confronted the Philosophy of history must be repeated in this case also:—either it has to continue the work of the physical and natural sciences, and in this case there will be progress in the physical and natural sciences and not in the Philosophy of nature; or it has to construct the Philosophy of nature (the physical and natural sciences); and this cannot be done, save by an a priori deduction of the empirical and thus falling into the error of panlogism or philosophism.

False analogies in the Philosophy of nature.