“I for my part, would not believe the Gospel, unless the authority of the Catholic Church moved me. They therefore whom I obeyed saying, ‘Believe the Gospel’, why should I not believe them saying, ‘Believe not Manichæus’? Choose whether thou wilt. If thou wilt say, ‘Believe the Catholics’, lo, they warn me that I give no credit unto you, and therefore believing them, I must needs not believe thee. If thou say, ‘Believe not the Catholics,’ it is not the right way, by the Gospel to drive me to the faith of Manichæus [because he defended his heresy by Scripture], because I believed the Gospel itself by the preaching of Catholics.”    - St. Augustine