The influence of the clergy of Paris obliged the Court to explain itself concerning the causes of my imprisonment, by the mouth of the Chancellor, who, in the presence of the King and Queen, acquainted them that his Majesty had caused me to be arrested for my own good, and to prevent me from putting something that I designed into execution. The chapter of Notre-Dame had an anthem sung every day for my deliverance. The Sorbonne and many of the a religious orders distinguished themselves by declaring for me. This general stir obliged the Court to treat me somewhat better than at first. They let me have a limited number of books, but no ink and paper, and they allowed me a ‘valet de chambre’ and a physician.
During my confinement at Vincennes, which lasted fifteen months, I studied both day and night, especially the Latin tongue, on which I perceive one cannot bestow too much pains, since it takes in all other studies. I dived into the Greek also, and read again the ninth decade of Livy, which I had formerly delighted in, and found as pleasant as ever. I composed, in imitation of Boetius, a treatise, which I entitled “Consolation de la Theologie,” in which I proved that every prisoner ought to endeavour to be ‘vinctus in Christo’ (in the bonds of Christ), mentioned by Saint Paul. I also compiled “Partus Vincennarum,” which was a collection of the Acts of the Church of Milan for the use of the Church of Paris.