You imply that certain Christian teachers were Protestant because of small quotes from their bodies of writings... what a laugh!
Each one of those men dedicated himself to the Catholic Church. Each one believed in the Real Presence of Christ in the Eucharist, in the efficacy of the sacraments, in the unity, holiness, universality, and apostolicity of the Catholic Church.
Actually, my post was a reply to the challenge: Ok. Tell me who were those "protesants" before 400 A.D. who agreed with the Catholic church.
In other words, I'm saying the early church fathers agreed with the Catholic church in many ways, though their teachings were very much in line with the Protestants today. Particularly regarding the subject matter of this thread: sola scriptura.