The Canadian's message to Al-Mu'tasim bi-Allah

The purpose of this book is to clarify the first philosophy, its discussions, and the difference between it and mathematical science on one hand, and natural science on the other hand. It has been clarified at the beginning of the book that he intended from his knowledge to attain the truth, and in his knowledge to act according to the truth. He sees that the noblest philosophy is the science of the first truth, which is the cause of all truth. He addressed a set of researches, including the limits of philosophy, and spoke about causes, and reconciled philosophy and religion, then moved on to dividing human existence into two parts: sensory existence and intellectual existence. He criticizes Aristotle in the most dangerous opinion, which is the eternity of the world or the eternity of things. He proved that matter is finite, as well as space, time, and motion, all with mathematical evidence. He believes that the mind is not one but many, because the mind is the universals of things. So, when he denies infinity and unity of everything, he does so to reach the one true, which is God, سبحانه وتعالى.