Joseph Ratzinger, Dogma and Preaching, San Francisco: Ignatius, 2011, 95. I have altered the text to better agree with Dogma und Verkündigung, Donauwörth: Wawel, 2005, 110.
To elaborate on the Magisterium of the Catholic Church is our mission on Plinthos (Gk. "brick"); and to do so anonymously, so that, like any brick in the wall, we might do our little part in the strength of the structure of humanity almost unnoticed.