‘To explain these severally in a right manner, it is necessary, from tradition and study, to know the time when each passage was revealed, its circumstances, state, and history, and the reasons or particular emergencies for the sake of which it was revealed. Or, more explicitly, whether the passage was revealed at Mekka or at Medina; whether it be abrogated, or does itself abrogate any other passage; whether it be anticipated in order of time or postponed; whether it be distinct from the context or depend thereon; whether it be particular or general; and lastly, whether it be implicit by intention, or explicit in words. ‘By what has been said, the reader may easily believe that this book is held by the Muslims in the greatest reverence and esteem. The more strict among them dare not touch it without being first washed or legally purified; which lest they should do by inadvertence, they sometimes write these words of the book itself on the cover or label, “None shall touch it but they who are purified.” They read it with great care and respect, never holding it below their girdles. They swear by it, consult it in their weighty occasions, carry it with them to war, inscribe sentences from it on their banners, sometimes adorn it with gold and precious stones, and knowingly suffer it not to be in the possession of any person of a different persuasion. It is the foundation of their education; and the children in the schools are taught to chant it, and commit the whole of it to memory.’ BOOKS.