Ten Years Later: The Vicomte of Bragelonne by Alexandre Dumas Chapter 32 Page 18

“Yes; that is true; he was a brave, an excellent man, who led a sad life, but made a fine end.”

“Well, my dear D’Artagnan, understand this; to that king, to that man of heart, to that friend of my thoughts, if I durst venture to say so, I swore at the last hour to preserve faithfully the secret of a deposit which was to be transmitted to his son, to assist him in his hour of need. This young man came to me; he described his destitution; he was ignorant that he was anything to me save a living memory of his father. I have accomplished towards Charles II. what I promised Charles I.; that is all! Of what consequence is it to me, then, whether he be grateful or not? It is to myself I have rendered a service, by relieving myself of this responsibility, and not to him.”