Thus, too, they came to know the incorrigible sorrow of all prisoners and exiles, which is to live in company with a memory that serves no purpose. Even the past, of which they thought incessantly, had a savor only of regret. For they would have wished to add to it all that they regretted having left undone, while they might yet have done it, with the man or woman whose return they now awaited; just as in all the activities, even the relatively happy ones, of their life as prisoners they kept vainly trying to include the absent one. And thus there was always something missing in their lives. Hostile to the past, impatient of the present and cheated of the future, we were much like those whom men’s justice, or hatred, forces to live behind prison bars. Thus the only way of escaping from that intolerable leisure was to set the trains running again in one’s imagination and in filling the silence with the fancied tinkle of a doorbell, in practice obstinately mute.

Albert Camus, The Plague