" As a surgical patient, by means of a local anaesthetic, can look on with a clear consciousness while an operation is being performed upon him and yet feel nothing, I could repeat to myself some favourite lines, or watch my grandfather attempting to talk to Swann about the Duc d’Audriffet-Pasquier, without being able to kindle any emotion from one or amusement from the other. "

― Marcel Proust , In Search of Lost Time