Fountain of Knowledge or The Fountain of Wisdom is a work containing three sections: Philosophical Chapters, 'Dialectic', it deals mostly with logic, its primary purpose being to prepare the reader for a better understanding of the rest of the book; Concerning Heresy– the last chapter of this part (Chapter 101) deals with the Heresy of the Ishmaelites.Unlike earlier sections devoted to other heresies, which are disposed of succinctly in just a few lines, this chapter runs into several pages. It constitutes one of the first Christian refutations of Islam;An Exact Exposition of the Orthodox Faith– a summary of the dogmatic writings of the Early Church Fathers. This writing was the first work of Scholasticism in Eastern Christianity and an important influence on later Scholastic works
