Here is a definition of Arabs by a great Arab Scientist and Philosopher:
"Arabs dominate only of the plains, because they are, by their savage nature, people of pillage and corruption. They pillage everything that they can take without fighting or taking risks, then flee to their refuge in the wilderness, and do not stand and do battle unless in self-defense. So when they encounter any difficulty or obstacle, they leave it alone and look for easier prey. And tribes well-fortified against them on the slopes of the hills escape their corruption and destruction, because they prefer not to climb hills, nor expend effort, nor take risks."
By Ibn Khaldoun's (1332 - 1406)