An educator in the faith cannot risk appearing like a sort of clown who recites a part “by profession”. Rather – to use an image dear to Origen, a writer who was particularly appreciated by Ambrose - he must be like the beloved disciple who rested his head against his Master's heart and there learned the way to think, speak, and act. The true disciple is ultimately the one whose proclamation of the Gospel is the most credible and effective.
--Pope Benedict XVI, Doctors of the Church, St. Ambrose of Milan