In the exercise, the mind has understood the limits of its powers, and the words and shadows that might amuse the child can no longer satisfy his manly reason. The volumes of controversy are overspread with cobwebs: the doctrine of a Protestant church is far removed from the knowledge or belief of its private members; and the forms of orthodoxy, the articles of faith, are subscribed with a sigh, or a smile, by the modern clergy. Yet the friends of Christianity are alarmed at the boundless impulse of inquiry and scepticism. The predictions of the Catholics are accomplished: the web of mystery is unravelled by the Arminians, Arians, and Socinians, whose number must not be computed from their separate congregations; and the pillars of Revelation are shaken by those men who preserve the name without the substance of religion, who indulge the license without the temper of philosophy. Chapter LV: The Bulgarians, The Hungarians And The Russians.--Part I. The Bulgarians.--Origin, Migrations, And Settlement Of The Hungarians.--Their Inroads In The East And West.--The Monarchy Of Russia.--Geography And Trade.--Wars Of The Russians Against The Greek Empire.--Conversion Of The Barbarians. Under the reign of Constantine the grandson of Heraclius, the ancient barrier of the Danube, so often violated and so often restored, was irretrievably swept away by a new deluge of Barbarians. Their progress was favored by the caliphs, their unknown and accidental auxiliaries: the Roman legions were occupied in Asia; and after the loss of Syria, Egypt, and Africa, the CÊsars were twice reduced to the danger and disgrace of defending their capital against the Saracens. If, in the account of this interesting people, I have deviated from the strict and original line of my undertaking, the merit of the subject will hide my transgression, or solicit my excuse. In the East, in the West, in war, in religion, in science, in their prosperity, and in their decay, the Arabians press themselves on our curiosity: the first overthrow of the church and empire of the Greeks may be imputed to their arms; and the disciples of Mahomet still hold the civil and religious sceptre of the Oriental world. But the same labor would be unworthily bestowed on the swarms of savages, who, between the seventh and the twelfth century, descended from the plains of Scythia, in transient inroad or perpetual emigration. Their names are uncouth, their origins doubtful, their actions obscure, their superstition was blind, their valor brutal, and the uniformity of their public and private lives was neither softened by innocence nor refined by policy. The majesty of the Byzantine throne repelled and survived their disorderly attacks; the greater part of these Barbarians has disappeared without leaving any memorial of their existence, and the despicable remnant continues, and may long continue, to groan under the dominion of a foreign tyrant. From the antiquities of, I.