from Don Juan: Canto 1, Stanzas 47-48
47
Sermons he read, and lectures he endured,
And homilies, and lives of all the saints;
To Jerome and to Chrysostom inured,
He did not take such studies for restraints;
But how faith is acquired, and then insured,
So well not one of the aforesaid paints
As Saint Augustine in his fine Confessions,
Which make the reader envy his transgressions.