Ante-Nicene Fathers Volume VI
Dionysius: Extant Fragments
Another student/heir of Origen, the bits and pieces we have of Dionysius are mostly worth wading through, even if their value is pretty uneven as a whole. As with Gregory, Dionysius has a clear appreciation of the value of contemporary (i.e. "Hellenistic") philosophy and it does seem to be a shame that we don't have more of this work. Especially since Dionysius appears to have a good method of taking the ideas and comments of the Hellenistic Philosophers and turning them back on themselves, showing their absurdity when taken in isolation and their truth with illuminated by the light of Christ; their emptiness when lived for themselves and the satisfaction they can bring when put to the service of God.
Overall, this is worth reading, albeit at a quick skimming clip--not necessarily in depth.