Purely literary considerations, as Ramsay has remarked, yield before other more objective and historical data, and the literary theories are adjusted to meet the new situation.[259] The temporary popularity in the New Testament field of the Baur-Tübingen theories, based on Hegelian principles of development, and then their general abandonment, suggest the need of caution before we accept any concensus of criticism, based upon literary and philosophical grounds alone, as the last word upon the subject. Our special concern in this lecture is with the problems of the New Testament, and we may consider briefly, I. The Pauline Epistles, II. The Acts, III. The Synoptic Problem, and IV. The Johannine Problem. 259: "Luke the Physician," p. 262. I. THE PAULINE EPISTLES It is frequently said that the figure of the Apostle Paul stands out against the background of history in bolder relief and with individual features more strongly marked than does any other character in antiquity. Not only has his public career been narrated by one who was apparently his friend and companion in labours, but he has left a large collection of letters, full of profound teaching upon religion and ethics, and abounding in autobiographic details and in intimate revelations of character. The school of Baur recognized as genuine only the four central epistles, Romans, 1 and 2 Corinthians and Galatians, making in bulk about three-fifths of the writings, exclusive of Hebrews, which have been assigned to Paul. The tendency of criticism since the time of Baur has been steadily in the direction of the acceptance of other epistles as Pauline. Colossians, Philippians and I Thessalonians have now been added to the list of the generally accepted writings, and it is only the fringe of Paul's writings that can be said to be still in dispute. Of these "anti-legomena," 2 Thessalonians, Ephesians and the Pastorals, it is noticeable that two of them are rejected largely on the ground that they resemble so closely in ideas and vocabulary the admittedly Pauline letters of I Thessalonians and Colossians, while a Pauline nucleus is often acknowledged in the Pastorals by those who do not assign the epistles as a whole to Paul.