duc de Louis de Rouvroy Saint-Simon, Memoirs of Louis XIV and His Court and of the Regency…
“ M. le Duc d’Orleans conducted himself in a manner simple, so prudent, that he infinitely gained by it. His cares and his reasonable anxiety were measured; there was much reserve in his conversation, an exact and sustained attention in his language, and in his countenance, which allowed nothing to escape him, and which showed as little as possible that he was the successor to the crown; above all, he never gave cause for people to believe that he thought the King’s illness more or less serious than it was, or that his hopes were stronger than his fears. ”
