In this innovative work, Taha Abdel Rahman set out to confront those who sought to create an epistemological break with the Islamic heritage, by criticizing its contents through abstract and politicized means, and excluding the rooted means of corrective and humanizing. He called for the adoption of an integrated and continuous evaluation of the heritage practice from within its field of circulation (its reference). It is a mechanical methodology (the abstract part of the method) in its objectives (not content), practical in its starting point (not abstract), and objectionable in its approach (not incidental).