The treatise of Origen Against Celsus is, of all his works, the most interesting to the modern reader. It is a defense of Christianity in opposition to a Greek philosopher named Celsus, who had attacked it in a work entitled, The True Word, or The True Discourse. Of this work we know nothing, except from the quotations contained in the Origen Against Celsus answer given to it by Origen. Nor has anything very certain been ascertained respecting its...