Christianity
- 7003
- A Letter to Gregory Thaumaturgus
- Origen urges Gregory to use his secular learning, particularly philosophy, in the service of Christianity, after the figure of the Israelites spoiling the Egyptians for treasures which they later transformed into sacred furnishings and vessels for the service of the living God. F. Crombie translation, from Ante-Nicene Fathers, vol. 4, American edition.
- 7004
- Against Celsus
- Crombie-Cairns translation, from the Ante-Nicene Fathers, vol. 4, American edition. Each of eight books in its own HTML file, with notes and links to previous, next, table of contents.
- 7005
- Brainfly: Origen
- Against Celsus, and De Principiis, with each book of the two works in its own file. Some scanner errors.
- 7007
- Early Church.org.uk: Tertullian of Carthage
- Overview of Tertullian's contributions, methods of exegesis, rhetoric, anti-intellectualism, and Montanism. Includes sources.
- 7008
- Tertullianus, Quintus Septimius Florens
- Extensive entry on Tertullian encompasses his life and theological notions, and includes outlines of his tracts. From the Early Christian Writings.
- 7009
- The Development of the Canon of the New Testament: Tertullian of Carthage
- Tertullian's citations of New Testament writings and other related works.
- 7010
- The Tertullian Project
- Information about this second-century church father, his works, lost works, manuscripts.
- 7011
- De Principiis
- F. Crombie translation, from the Ante-Nicene Fathers, vol. 4, American edition. Author's preface and each of four books in their own HTML files. Book IV is incomplete.
- 7012
- Origen de Principiis
- F. Crombie translation, from the Ante-Nicene Fathers, vol. 4, American edition. Author's preface and each of four books in their own HTML files, with notes and links to previous, next, table of contents. Book IV is incomplete.
- 7013
- The Principles, Book IV
- F. Crombie translation, from the Ante-Nicene Fathers, vol. 4, American edition. Translation from Latin and from Greek in parallel columns. Incomplete.
- 7014
- Pre-Reformation Mystics
- Short biographies of men such as Thomas a Kempis, Meister Eckhard, Johannus Tauler, Heinrich Suso, and some later mystics.
- 7015
- The Northern Renaissance and the Background of the Reformation
- Discusses the Devotio Moderna, mysticism, the invention of printing, and humanism and its effect on the Reformation.
- 7016
- A Treatise on the Soul
- Peter Holmes translation, with notes. From the Ante-Nicene Fathers, vol. 3, American edition. 268K.
- 7017
- Against Hermogenes: Containing an Argument Against His Opinion That Matter Is Eternal
- Holmes translation, with notes. From the Ante-Nicene Fathers, vol. 3, American edition. 150K.
- 7018
- Against the Valentinians
- Alexander Roberts translation, with notes. From the Ante-Nicene Fathers, vol. 3, American edition. About 100K.