Leave aside explanations and annotations; they are like fleeting visions upon insight. And his saying: O people in the school, Your minds are like a horse's mane, infested with worms. If your thinking is not about the Beloved, It has no share in the hereafter. So wash from the tablet of the heart with wine Every knowledge that does not save in this world.

The Second Chapter of the Introduction Relates to the sciences and arts that are required. Therefore, we have listed the required crafts to know their importance and necessity in any state. These arts are either available in Egypt or completely absent. They are of two types: a section of knowledge for students, which is arithmetic, geometry, geography, history, and drawing. And a section that is distributed among them, which is several sciences. The First Science: The science of managing royal affairs, from which several branches stem: the three rights that the offspring consider, which are natural rights, human rights, and positive rights. And the science of the conditions of countries and their interests and what is suitable for them. And the science of economy in expenses, and the science of managing transactions, and accountants, and treasurery, and preserving the treasury. And elegies. The science of managing the military. The Third Science: The science of captaincy and maritime affairs. The Fourth Science: The art of knowing how to proceed in the affairs of states, meaning the science of diplomacy, and from it is the embassy, which is the message of countries, and its branches are knowledge of languages, rights, and terminology. The Fifth Science: The art of water, which is the craft of bridges, dams, quays, and inns, and the like. The Sixth Science: Mechanics, which is engineering tools and the ability to move. The Seventh Science: The engineering of fortifications. The Eighth Science: The art of firing cannons and their arrangement, which is the art of