Deepening scientific knowledge was considered philosophy, even until the time of Newton and afterward. Everything that Newton wrote about gravity, light, nature, etc., was considered by the scholars of his time to be philosophy. However, the modern scholars of the era saw that everything that was permissible for practical examination and laboratory testing was considered to be science. Therefore, they transferred many of the ancient philosophical topics to the house of science, and did not leave for philosophy except what they called "metaphysics" - and this is also an ambiguous word - and the topics of ethical philosophy, such as truth, justice, freedom, cause and effect, causes and effects, etc. However, these were also transferred to Dar al-Ilm. Therefore, philosophy became secondary to science. With this in mind, the author gives this book the veil of philosophy, while admitting that he adds a lot to it.