The position of a man of low birth as tutor in that princely household was not without its difficulties. Vincent was a dependent; but there was a quiet dignity about him which forbade liberties. With the servants, and there were many of every grade, he was always cordial and polite, losing no chance of winning their confidence, that he might influence them for good. His duties over, he would retire to his own room, refusing, unless especially sent for, to mix with the great people who frequented the house. Madame de Gondi, with a woman's intuition, was the first to realize the sanctity of her sons' tutor and resolved to put herself under his direction. Knowing enough of his humility to be certain that he would refuse such a request, she applied to Father de Berulle to use his influence in the matter, and thus obtained her desire. At Vincent's suggestion she soon afterwards undertook certain works of charity, which were destined to be the seed of a great enterprise. The Count, too, began to feel the effects of Vincent's presence in his household. It was the age of dueling, and hundreds of lives were lost in this barbarous practice. De Gondi was a famous swordsman, and although the life he led was a great deal better than that of the majority of his contemporaries, the possibility of refusing to fight when challenged, or of refraining from challenging another when his honor was at stake, had never occurred to him. Vincent had been some time at the de Gondis' when it came to his ears that the Count intended to fight a duel on a certain day, and he resolved, if possible, to prevent it. De Gondi was present at Mass in the morning and remained on afterwards in the chapel, praying, probably, that he might prevail over his enemy. Vincent waited till everyone had gone out, and then approached him softly. "Monsieur," he said, "I know that you intend to fight a duel; and I tell you, as a message from my Saviour, before whom you kneel, that if you do not renounce this intention His judgment will fall on you and yours." The Count, after a moment's silence, promised to give up his project, and faithfully kept his word. It was the greatest sacrifice that could have been asked of a man in de Gondi's position, and it was a thing unheard of at the time for a priest to lay down the law to a great nobleman. But the influence of sanctity is strong, and the Count was noble; for him it was the beginning of a better life. The de Gondis usually spent part of the year at their country house in Picardy, where they had large estates. Here the love of the poor which Vincent had fostered in Madame de Gondi was in its element, and she delighted in visiting her tenants, tending the sick with her own hands, and seconding all M. Vincent's plans for their welfare.