In this treatise Ibn Rushd (Averroes) sets out to show that the Scriptural Law (shar') of Islam does not altogether prohibit the study of philosophy by Muslims, but, on the contrary, makes it a duty for a certain class of people, those with the capacity for "demonstrative" or scientific reasoning. Apparent conflicts between the teachings of Scripture and philosophy can be reconciled by allegorical interpretations of Scripture, though such interpretations should not be taught to the common people.