“I know positively… that each of us has the plague within him; no one, no one on earth, is free from it. And I know, too, that we must keep endless watch on ourselves lest in a careless moment we breathe in somebody’s face and fasten the infection on him. What’s natural is the microbe. All the rest – health, integrity, purity (if you like) – is a product of the human will, of a vigilance that must never falter. The good man, the man who infects hardly anyone, is the man who has the fewest lapses of attention. And it needs tremendous will power, a never ending tension of the mind, to avoid such lapses. Yes… it’s a wearying business, being plague-stricken. But it’s still more wearying to refuse to be it. That’s why everybody in the world today looks so tired; everyone is more or less sick of plague. But that is also why some of us, those who want to get the plague out of our systems, feel such desperate weariness, a weariness from which nothing remains to set us free, except death.”