I didn't suggest a specific one (there's several, public domain and more recent). I chose
https://www.amazon.com/Celsus-His-Own-Words-Translation-ebook/dp/B0DCW8C51H
primarily to see the fragment sequence and index to Origen's 'Against Celsus' indexing. Recommended for anyone needing a decent volume.
Celsus is similar to some other important authors … their comments are buried in later writer's discussions. A good example is Papias in Eusebius.
So, technically you can read all we have of Celsus, by reading Origen!
And Celsus suffers from translators, similar to the greek NT. Some even paraphrase new Celsus meanings.
Celsus seems to have written in the 2nd century, about the same time as Justin Martyr. His criticisms are normally the modern discussion. I see it more as clues as to where the church was, at that point … what writings are apparent and which arguments seem important (at least in Alexandria, as best guess).
Luckily Logos has the beginnings of latin Patrologeia, to track down usage.
