The Church Fathers · c. 400–427
On the Trinity
De Trinitate
Augustine of Hippo · 354–430
What it is
Fifteen books written over a quarter of a century, arguing the doctrine from scripture and then searching the human mind — memory, understanding, will — for a created trace of the Trinity.
Why it lasted
The most influential trinitarian work in Western history, and the origin of the psychological analogy that dominated Latin theology thereafter.
Scripture it works from
Where to read it
This work is in the public domain and can be read in full, free, at the archives below. The Library catalogues it; it does not host the text.
These open a search on each archive rather than a direct link, which is the honest way to point at an edition nobody here has checked line by line.
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