Preface, showing the utility of the treatise on Christian doctrine Book I. Containing a general view of the subjects treated in Holy Scripture Book II. Having completed his exposition of things, the author now proceeds to discuss the subject of signs. Book III. The author, having discussed in the preceding book the method of dealing with unknown signs, goes on in this third book to treat of ambiguous signs. Book IV. Passing to the second part of his work, that which treats of expression, the author premises that it is no part of his intention to write a treatise on the laws of rhetoric.
St. Augustine is among the most important theologians in Christendom. His concept of the church as a spiritual world, distinct from the material world, exercised a profound influence on medieval philosophy, and his Confessions are among the world's most widely read autobiographies.