In a letter to his Jesuit superior in the spring of 1558, John Paul Nicolas, S.J., described a recent argument with the bishop of Perugia:The other day, Tuesday, I breakfasted with his Reverence the Bishop of Perugia; and he said to me that it was important to him and to everyone in Perugia that our school read the Latin grammar book of Christopher Sasso [a professor of rhetoric at the University of Perugia], because when they had seen that we read this and other grammars, they would be very friendly to us and in this way much rancor would be avoided. I responded to him: “Monsignor, being that there are so many grammar books as good as that of Sasso, it does not seem necessary to me to change, especially if Sasso's is no different than the others.” He said: “So much the better that they are not different, it will not be troublesome to you.” I repeated to him that such changes did not seem to me to be a good idea. He said: “Look, it will not be disliked,” adding that he had had experience with it in the past.