When the palanquins of the Incas travelled rapidly on the smooth, magnificent causeways which still unite Cuzco and Quito, a distance of fifteen hundred miles, with what feelings of exultation must they have contemplated the conquests of the present, what magnificent prospects of the future must have presented themselves to their imaginations! Stern time, with one blow of his gigantic wings, hurled their empire into the deepest depths of the abyss of oblivion. These proud sovereigns of Peru--they, too, had their sciences, their mechanical inventions, their powerful machines: the works they accomplished we contemplate with amazement, and a vain effort to divine the means employed. How were those blocks of stone, thirty-five feet long and eighteen thick, raised one upon another? How were they transported the vast distance from the quarries where they were hewn? By what contrivance did the engineers of that people hoist those enormous masses to a dizzy height? It is indeed a problem--a problem, too, which we will never solve. Nor are the ruins of Tihuanaco unparalleled by the remains of European civilizations of ante-historic times. The cyclopean walls with which Southern Europe abounds, and which have withstood the all-destroying tooth of time for thousands upon thousands of years--who built them? Who piled these monstrous masses, which modern art could scarcely move? Let us not mistake the results of a civilization for its causes. The causes cease, the results subsist for a while, then are lost. If they again bear fruit, it is because a new spirit has appropriated them, and converted them to purposes often very different from those they had at first. Human intelligence is finite, nor can it ever reign at once in the whole of its domain:[180] it can turn to account one portion of it only by leaving the other bare; it exalts what it possesses, esteems lightly what it has lost. Thus, every generation is at the same time superior and inferior to its predecessors. Man cannot, then, surpass himself: man's perfectibility is not infinite. FOOTNOTES: [174] The word _criticism_ has here been used by the translator in a sense somewhat unusual in the English language, where it is generally made to signify "the art of judging of literary or artistic productions." In a more comprehensive sense, it means _the art of discriminating between truth and error_, or rather, perhaps, between _the probable and the improbable_. In this sense, the word is often used by continental metaphysicians, and also, though less frequently, by English writers. As the definition is perfectly conformable to etymology, I have concluded to let the above passage stand as it is.--H. [175] It will be remembered that Mr. Gobineau speaks of Europe.--H. [176] The term "Radical" is used on the European continent to designate that party who desire thorough, uncompromising reform: the plucking out of evils by the _root_.--H.