The overwhelming majority of classical theologians, jurists, and traditionalists [i.e., specialists in the hadith] . . . understood the obligation of… - Bernard Lewis

We are accustomed to talking of church and state, and a whole series of pairs of words that go with them lay and ecclesiastical, secular and religious, spiritual and temporal, and so on. These pairs of words simply do not exist in classical Islamic terminology, because the dichotomy that these words express is unknown. They are used in the modern languages. In Arabic, they borrow the terminology used by Christian Arabs. They are fortunate in having a substantial Christian population using Arabic, and they therefore have a good part of the modern terminology at their disposal, in their own language. In Turkish, Persian, Urdu and other languages of Islam, they had to invent new words.

In talking of the Christian world, in English and, I suppose, in all the other languages of the Christian world we use two terms: Christianity and Christendom. Christianity means a religion, in the strict sense of that word, a system of belief and worship and some clerical or ecclesiastical organization to go with it. If we say Christendom, we mean the entire civilization that grew up under the aegis of that religion, but also contains many elements that are not part of that religion, many elements that are even hostile to that religion. Let me give one simple example. No one could seriously assert that Hitler and the Nazis came out of Christianity. No one could seriously dispute that they came out of Christendom. In talking of Islam, we use the same word in both senses, and this gives rise to considerable confusion and misunderstanding. There are many things that are described as part of Islam, which are indeed part of Islam, if we take the word as the equivalent of Christendom, but are very much not part of Islam are even alien or hostile to Islam if we take the word Islam as the equivalent of Christianity. I think this is a very important point, which one should bear in mind.

The attitude to black Africans remains on the whole negative. Some Muslim authors give balanced and factual accounts, based on personal knowledge, of the black kingdoms; a few even write pious treatises to defend the dark peoples against their detractors. Such defense was clearly felt to be necessary, because of the survival of old prejudices. Even the great geographer Idrisi, in concluding his account of the first climate (geographical zone) with some general remarks on its inhabitants, repeats the old cliches about furrowed feet and stinking sweat and ascribes "lack of knowledge and defective minds" to the black peoples. Their ignorance, he says, is notorious; men of learning and distinction are almost unknown among them, and their kings only acquire what they know about government and justice from the instruction of learned visitors from farther north. The thirteenth-century Persian writer Nasir al-Din Tusi remarks that the Zanj differ from animals only in that "their two hands are lifted above the ground" and continues, "Many have observed that the ape is more teachable and more intelligent than the Zanji."