And when we pass from the great facts of Roman history to the questions which it suggests to a contemplative mind in reference to the state of society among ourselves, on which history ought to shed light, what enigmas remain to be solved. Does moral worth necessarily keep pace with aesthetic culture, or intellectual triumphs, or material strength? Do the boasted triumphs of civilization create those holy certitudes on which happiness is based? Can vitality in states be preserved by mechanical inventions? Does society expand from inherent laws of development, or from influences altogether foreign to man? Is it the settled destiny of nations to rise to a certain height in wisdom and power, and then pass away in ignominy and gloom? Is there permanence in any human institutions? Will society move round in perpetual circles, incapable of progression and incapable of rest, or will it indefinitely improve? May there not be the highest triumphs of art, literature, and science, where the mainsprings of society are sensuality and egotism? Is the tendency of society to democratic, or aristocratic, or despotic governments? Does Christianity, in this dispensation, merely furnish witnesses of truth, or will it achieve successive conquests over human degeneracy till the race is emancipated and saved? Can it arrest the downward tendency of society, when it is undermined by vices which blunt the conscience of mankind, and which are sustained by all that is proud in rank, brilliant in fashion, and powerful in wealth? These are inquiries on which Roman history sheds light. If history is a guide or oracle, they are full of impressive significance. Can we afford to reject all the examples of the past in our sanguine hopes for the future? Human nature is the same in any age, and human experiences point to some great elemental truths, which the Bible confirms. _We_ may be unmoved by them, but they remain in solemn dignity for all generations; "and foremost of them," as Charles Kingsley has so well said, "stands a law which man has been trying in all ages, as now, to deny, or at least to ignore, and that is,--that as the fruit of righteousness is wealth and peace, strength and honor, the fruit of unrighteousness is poverty and anarchy, weakness and shame; for not upon _mind_, but upon _morals_, is human welfare founded. Science is indeed great; but she is not the greatest. She is an instrument, and not a power. But her lawful mistress, the only one under whom she can truly grow, and prosper, and prove her divine descent, is Virtue, the likeness of Almighty God,--an ancient doctrine, yet one ever young, and which no discoveries in science will ever abrogate."