Augustine was converted in Milan, and had St. Ambrose, a Roman, for his master, and differed from the theologians either of the East or the West only in the unmatched ability and science with which he defended the faith common to all. He may have had some peculiar notions on some points, but if so, these have never been received as Catholic doctrine. The professor might as well assert the distinction, asserted in Germany a few years since, which attracted some attention at the time, but now forgotten, between the Petrine gospel, the Pauline gospel, and the Joannine gospel, as the distinction of the three primitive forms of Christianity which he asserts. We were told by some learned German, we forget his name, that Peter, Paul, and John represent three different phases or successive forms of Christianity. The Petrine gospel represents religion, based on authority; the Pauline, religion as based on intelligence; and the Joannine, religion as based on love. The first was the so-called Catholic or Roman Church. The reformation made an end of that, and ushered in the Pauline form, or Protestantism, the religion of the intellect. Philosophy, science. Biblical criticism, and exegesis, the growth of liberal ideas, and the development of the sentiments and affections of the heart, have made an end of Protestantism, and are ushering in the Joannine gospel, the religion of love, which is never to be superseded or to pass away. The advocate of this theory had got beyond authority and intelligence, whether he had attained to the religion of love or not; yet the theory was only the revival of the well-known heresy of the Eternal Evangel of the thirteenth century. So hard is it to invent a new heresy. It were a waste of words to attempt to show that this theory has not the slightest foundation in fact. Paul and John assert authority as strenuously as Peter; Peter and John give as free scope to the intellect as Paul; and Peter and Paul agree with John in regard to love or charity. There is nothing in the Gospel or Epistles of John to surpass the burning love revealed, we might almost say concealed, so unostentatious is it, by the inflamed Epistles of Paul. As for Protestantism, silence best becomes it, when there is speech of intelligence, so remarkable is it for its illogical and unintellectual character. Protestants have their share of native intellect, and the ordinary degree of intelligence on many subjects; but in the science of theology, the basis of all the sciences, and without which there is, and can be, no real science, they have never yet excelled.