70 Venerable Brethren, the fifteenth centenary of the death of St. Leo the Great finds the Catholic Church in much the same plight as she was at the turn of the fifth century. The same waves of bitter hostility break upon her. How many violent storms does she not enter in these days of ours—storms which trouble Our fatherly heart, even though our Divine Redeemer clearly forewarned us of them!
Source: Aeterna Dei Sapientia (Vatican.va)