community; for this plain reason, that they are not rich enough to purchase them. But the remarkable thing is, that in the decline of the empire, it was in the lower ranks that the greatest and most fatal weakness first appeared. Long before the race of the Patricians had become extinct, the free cultivators had disappeared from the fields. Leaders and generals of the most consummate abilities, of the greatest daring, frequently arose; but their efforts proved in the end ineffectual, from the impossibility of finding a sturdy race of followers to fill their ranks. The legionary Italian soldier was awanting--his place was imperfectly supplied by the rude Dacian, the hardy German, the faithless Goth. So completely were the inhabitants of the provinces within the Rhine and the Danube paralysed, that they ceased to make any resistance to the hordes of invaders; and the fortunes of the empire were, for several generations, sustained solely by the heroic efforts of individual leaders--Belisarius, Narces, Julian, Aurelian, Constantine, and many others--whose renown, though it could not rouse the pacific inhabitants to warlike efforts, yet attracted military adventurers from all parts of the world to their standard. Now, what weakened and destroyed the rural population? It could not be luxury; on the contrary, they were suffering under excess of poverty, and bent down beneath a load of taxes, which in Gaul, in the time of Constantine, amounted, as Gibbon tells us, to nine pounds sterling on every freeman? What was it, then, which occasioned the depopulation and weakness? This is what it behoves us to know--this it is which ancient history has left unknown. It is here that the vast step in the philosophy of history made from ancient to modern times is apparent. From a few detached hints and insulated facts, left by the ancient annalists, apparently ignorant of their value, and careless of their preservation, modern industry, guided by the light of philosophy, has reared up the true solution of the difficulty, and revealed the real causes, hidden from the ordinary gaze, which, even in the midst of its greatest prosperity, gradually, but certainly, undermined the strength of the empire. Michelet, in his _Gaule sous les Romains_, a most able and interesting work--Thierry, in his _Domination Romaine en Gaule_, and his _Histoire des Rois Merovingians_--Sismondi, in the three first volumes of his _Histoire des Français_--and Guizot, in his _Civilisation Européenne_, and the first volumes of his _Essais sur l'Histoire de France_--have applied their great powers to this most interesting subject. It may safely be affirmed, that they have got to the bottom of the subject, and lifted up the veil from one of the darkest, and yet most momentous, changes in the history of mankind. Guizot gives the following account of the principal causes which silently undermined the strength of the empire, flowing from the peculiar organization of ancient society:--