The beholder in the history of our Islamic nation finds that it is a sea full of his men in various fields of knowledge, some of them are stars in the science of interpretation and the Drue planets in the science of the Prophetic Sunnah, and the meal in jurisprudence and a pearls in the sciences of Sharia .. to other. And together we stop with a group of men of Islamic history, who are the sages of Islam and the wise: with wisdom and wisdom is to know the best things in the best sciences and it is said to those who improve the minutes of industries and mastered them: Hakim. For the Islamic Library, the book of the History of the Wise of Islam for Al -Bayhaqi, a book that presents to us examples of Islamic history in the sciences of medicine, engineering and astronomy ... and the like. We stop here for a moment.