Books and Their Method

This chapter deals with the method of philosophical books during the sixth/twelfth century. It begins with an analysis of Abu l-Barakat al-Baghdadi’s method of i’tibar (careful consideration) and highlights its departure from al-Farabi’s and Avicenna’s (Ibn Sina’s) demonstrative method as the ideal of philosophical inquiry. The chapter looks at how Fakhr al-Din al-Razi describes his own method in his philosophical books and it analyzes the method of “probing and dividing” (sabr wa-taqsim) used therein. Finally, the chapter zooms in on the methodical differences between Fakhr al-Din’s philosophical books and his books of kalam and focuses on the principle of sufficient reason. This philosophical principle requires that every event must have a rational explanation of its cause(s). The principle is universally valid in al-Razi’s philosophical books, yet in his books on kalam only insofar as God’s will is excluded from this requirement. This difference has far-reaching effects on the teachings put forward in these two genres of books.