Having never been subject to nor mixed with other nations it is more than probable that they have preserved their manners and their language. Indeed, Arabic is, in some sense, the mother tongue of all Asia as far as the Indus; or rather, the prevailing tongue, for mother tongues have never existed. Their genius has never changed. They still compose their "Nights' Entertainments," as they did when they imagined one Bac or Bacchus, who passed through the Red Sea with three millions of men, women, and children; who stopped the sun and moon, and made streams of wine issue forth with a blow of his rod, which, when he chose, he changed into a serpent. A nation so isolated, and whose blood remains unmixed, cannot change its character. The Arabs of the desert have always been given to robbery, and those inhabiting the towns been fond of fables, poetry, and astronomy. It is said, in the historical preface to the Koran, that when any one of their tribes had a good poet the other tribes never failed to send deputies to that one on which God had vouchsafed to bestow so great a gift. The tribes assembled every year, by representatives, in an open place named Ocad, where verses were recited, nearly in the same way as is now done at Rome in the garden of the academy of the Arcadii, and this custom continued until the time of Mahomet. In his time, each one posted his verses on the door of the temple of Mecca. Labid, son of Rabia, was regarded as the Homer of Mecca; but, having seen the second chapter of the Koran, which Mahomet had posted, he fell on his knees before him, and said, "O Mahomet, son of Abdallah, son of Motalib, son of Achem, thou art a greater poet than I--thou art doubtless the prophet of God." The Arabs of Maden, Naïd, and Sanaa were no less generous than those of the desert were addicted to plunder. Among them, one friend was dishonored if he had refused his assistance to another. In their collection of verses, entitled _"Tograid",_ it is related that, "one day, in the temple of Mecca, three Arabs were disputing on generosity and friendship, and could not agree as to which, among those who then set the greatest examples of these virtues, deserved the preference. Some were for Abdallah, son of Giafar, uncle to Mahomet; others for Kais, son of Saad; and others for Arabad, of the tribe of As. After a long dispute they agreed to send a friend of Abdallah to him, a friend of Kais to Kais, and a friend of Arabad to Arabad, to try them all three, and to come and make their report to the assembly. "Then the friend of Abdallah went and said to him, 'Son of the uncle of Mahomet, I am on a journey and am destitute of everything.' Abdallah was mounted on his camel loaded with gold and silk; he dismounted with all speed, gave him his camel, and returned home on foot.