Augustin d'Hippone
Believe to understand: God in the innermost self.
On Free Choice of the Will essential
A dialogue with his friend Evodius: where does evil come from, if God is good? Begun in Rome, finished in Africa. It already contains "if you did not exist, you could not be deceived". No free English translation in our corpus.
Confessions essential
A long prayer addressed to God: his youth, his faults, his conversion (Books I to IX), then memory, time and creation (X to XIII). Written by Augustine as bishop, looking back on his life.
On the Trinity
The mind as God's image: memory, understanding, will. Contains other versions of the "if I doubt, I live" argument. Not yet in our corpus.
The City of God essential
Written in instalments after the sack of Rome (410). Two cities mixed in history: that of self-love and that of the love of God. Contains "if I am deceived, I am" (XI, 26).
Enchiridion (Handbook)
A short summary of the Christian faith, written for a man named Laurentius. Evil is defined there as "privation of good" (ch. 11).