What are Augustine's primary aims in writing De Doctrina Christiana?

Explain the different types of signs and how Augustine thinks they should be understood.

What are the features of an eloquent Christian orator?

Describe the contrast between unknown and ambiguous signs between Book Two and Book Three.

What must a man know and possess to correctly interpret Scripture?

How does 'the law of love' form the basis for any proper exegesis of Scripture?

What is the significance of Tyconius and his writings? What are his seven principles of exegesis and how does Augustine understand them?