You have urged me, Dexter, to follow the example of Tranquillus in giving a systematic account of ecclesiastical writers, and to do for our writers what he did for the illustrious men of letters among the Gentiles, namely, to briefly set before you all those who have published any memorable writing on the Holy Scriptures, from the time of our Lord’s passion until the fourteenth year of the Emperor Theodosius. A similar work has been done by Hermippus the peripatetic, Antigonus Carystius, the learned Satyrus, and most learned of all, Aristoxenus the Musician, among the Greeks, and among the Latins by Varro, Santra, Nepos, Hyginus, and by him through whose example you seek to stimulate us,—Tranquillus.