Lift not thy hands to it for help, for it rolls impotently on as thou or I. So as you can imagine, the Islamic world, these empires between the 8th and 13th centuries, it was actually a very powerful bridge of human knowledge, taking knowledge from the Indians, the Chinese, the ancient Greeks, and providing a bridge during the Dark Ages in Europe. And to get a sense of that, we have some texts from some historians on that time period. This is some text from, this is some text from the historian Philip Hittie. And he wrote, during all the first part of the Middle Ages, no other people made as important a contribution to human progress as did the Arabs, if we take this term to mean all those whose mother tongue was Arabic, and not merely those living in the Arabian Peninsula. For centuries, Arabic was the language of learning, culture, and intellectual progress for the whole of the civilized world with the exception of the Far East. From the 9th to the 12th century, there were more philosophical, medical, historical, religious, astronomical, and geographical works written in Arabic than in any other human tongue.