Since the teacher of Catholic truth ought not only to instruct the advanced, but it also belongs to him to teach beginners—according to that word of the Apostle in 1 Corinthians 3:1-2: 'As to little ones in Christ, I gave you milk to drink, not solid food'—the purpose of our intention in this work is to set forth those things which belong to the Christian religion in such a manner as befits the instruction of beginners. For we have observed that the novices in this teaching are very greatly hindered by the things which have been written by various authors: partly indeed on account of the multiplication of useless questions, articles, and arguments;
partly also because those things which are necessary for such persons to know are not handed down according to the order of the discipline, but according to what the exposition of the books required, or according as the occasion for disputation presented itself; partly indeed because the frequent repetition of these same things generated both weariness and confusion in the minds of the hearers. Striving therefore to avoid these and other things of this kind, we shall attempt, with confidence in divine aid, to pursue briefly and clearly those things which belong to sacred doctrine, in so far as the matter shall allow.