Arnold of Brescia, John Huss, and Jerome of Prague did not come quite apropos; the people were not then sufficiently enlightened; the invention of printing had not then laid the abuses complained of before the eyes of every one. But when men began to read--when the populace, who were solicitous to escape purgatory, but at the same time wished not to pay too dear for indulgences, began to open their eyes, the reformers of the sixteenth century came quite apropos, and succeeded. It has been elsewhere observed that Cromwell under Elizabeth or Charles the Second, or Cardinal de Retz when Louis XIV. governed by himself, would have been very ordinary persons. Had Cæsar been born in the time of Scipio Africanus he would not have subjugated the Roman commonwealth; nor would Mahomet, could he rise again at the present day, be more than sheriff of Mecca. But if Archimedes and Virgil were restored, one would still be the best mathematician, the other the best poet of his country. ARABS; AND, OCCASIONALLY, ON THE BOOK OF JOB. If any one be desirous of obtaining a thorough knowledge of the antiquities of Arabia, it may be presumed that he will gain no more information than about those of Auvergne and Poitou. It is, however, certain, that the Arabs were of some consequence long before Mahomet. The Jews themselves say that Moses married an Arabian woman, and his father-in-law Jethro seems to have been a man of great good sense. Mecca is considered, and not without reason, as one of the most ancient cities in the world. It is, indeed, a proof of its antiquity that nothing but superstition could occasion the building of a town on such a spot, for it is in a sandy desert, where the water is brackish, so that the people die of hunger and thirst. The country a few miles to the east is the most delightful upon earth, the best watered and the most fertile. There the Arabs should have built, and not at Mecca. But it was enough for some charlatan, some false prophet, to give out his reveries, to make of Mecca a sacred spot and the resort of neighboring nations. Thus it was that the temple of Jupiter Ammon was built in the midst of sands. Arabia extends from northeast to southwest, from the desert of Jerusalem to Aden or Eden, about the fiftieth degree of north latitude. It is an immense country, about three times as large as Germany. It is very likely that its deserts of sand were brought thither by the waters of the ocean, and that its marine gulfs were once fertile lands. The belief in this nation's antiquity is favored by the circumstance that no historian speaks of its having been subjugated. It was not subdued even by Alexander, nor by any king of Syria, nor by the Romans. The Arabs, on the contrary, subjugated a hundred nations, from the Indus to the Garonne; and, having afterwards lost their conquests, they retired into their own country and did not mix with any other people.