12 This area of activity in the Church has indeed been very wide. As soon as the long slaughter ceased and the Church regained its strength, wise men devoted their talent and their learning to glorifying the faith which had been sealed in the blood of its heroes. First the Fathers worked together at this task with their mighty strength. And in general their learned speech was worthy of the attention of the Greeks and the Romans.
Source: Militantis Ecclesiae (Vatican.va)