In French: Ils n'ont rien appris, ni rien oublié. There is no historic evidence linking the saying to Talleyrand. It may derive from a similar lamentation about the royalists, found in a letter by Charles Louis Etienne, chevalier de Panat, a French naval officer, dated January 1796 and sent from London to Mallet du Pan: personne n'a su ni rien oublier, ni rien apprendre ("nobody has been able to forget anything, nor to learn anything"), included in: A. Sayou biên tập (1852). Mémoires et correspondance de Mallet du Pan. II. tr. 197.
newadvent.org
“Louis XIV”. Catholic Encyclopedia. 2007. Truy cập ngày 19 tháng 1 năm 2008.
