For no one desires anything in all that one seems to desire other than the Good, which You are. Also in all intellectual deliberation no one searches for something other than the true, which You are. What does the living search for other than life? What does the existing search for other than existence? You, therefore, who bestow life and existence, are that one, who seems to be sought differently in the diverse rites and is named with diverse names, since You as You are remain unknown and ineffable for all.
De Pace Fidei (The Peace of Faith) (1453)