This is but a small part of what might be said upon an almost inexhaustible theme: inexhaustible not from its extent but from its profundity: not because there is so much to say, but because, pursue we it never so far, more will remain unexpressed, since incapable of expression. For that which it is at once most necessary and least possible to do, is to look at the Empire as a whole: a single institution, in which centres the history of eighteen centuries--whose outer form is the same, while its essence and spirit are constantly changing. It is when we come to consider it in this light that the difficulties of so vast a subject are felt in all their force. Try to explain in words the theory and inner meaning of the Holy Empire, as it appeared to the saints and poets of the Middle Ages, and that which we cannot but conceive as noble and fertile in its life, sinks into a heap of barren and scarcely intelligible formulas. Who has been able to describe the Papacy in the power it once wielded over the hearts and imaginations of men? Those persons, if such there still be, who see in it nothing but a gigantic upas-tree of fraud and superstition, planted and reared by the enemy of mankind, are hardly further from entering into the mystery of its being than the complacent political philosopher, who explains in neat phrases the process of its growth, analyses it as a clever piece of mechanism, enumerates and measures the interests it appealed to, and gives, in conclusion, a sort of tabular view of its results for good and for evil. So, too, is the Holy Empire above all description or explanation; not that it is impossible to discover the beliefs which created and sustained it, but that the power of those beliefs cannot be adequately apprehended by men whose minds have been differently trained, and whose imaginations are fired by different ideals. Something, yet still how little, we should know of it if we knew what were the thoughts of Julius Cæsar when he laid the foundations on which Augustus built: of Charles, when he reared anew the stately pile: of Barbarossa and his grandson, when they strove to avert the surely coming ruin. Something more succeeding generations will know, who will judge the Middle Ages more fairly than we, still living in the midst of a reaction against all that is mediæval, can hope to do, and to whom it will be given to see and understand new forms of political life, whose nature we cannot so much as conjecture. Seeing more than we do, they will also see some things less distinctly. The Empire which to us still looms largely on the horizon of the past, will to them sink lower and lower as they journey onwards into the future. But its importance in universal history it can never lose. For into it all the life of the ancient world was gathered: out of it all the life of the modern world arose. THE END. FOOTNOTES: [418] See Louis Napoleon's letter to General Forey, explaining the object of the expedition to Mexico.