Thus, concubinage is not considered a breach of morality; neither is it regarded by the legitimate wives with jealousy.

They attach great importance to the laws of Moses and to the customs of their forefathers; neither can they understand the reason for a change of habit in any respect where necessity has not suggested the reform.

The Arabs are creatures of necessity; their nomadic life is compulsory, as the existence of their flocks and herds depends upon the pasturage.

Thus, with the change of seasons they must change their localities, according to the presence of fodder for their cattle.

Driven to and fro by the accidents of climate, the Arab has been compelled to become a wanderer; and precisely as the wild beasts of the country are driven from place to place either by the arrival of the fly, the lack of pasturage, or by the want of water, even so must the flocks of the Arab obey the law of necessity, in a country where the burning sun and total absence of rain for nine months of the year convert the green pastures into a sandy desert.
The Arab cannot halt on one spot longer than the pasturage will support his flocks; therefore his necessity is food for his beasts.