"All I maintain is that on this earth there are pestilences and there are victims, and it's up to us, so far as possible, not to join forces with the pestilences. That may sound simple to the point of childishness; I can't judge if it's simple, but I know it's true. You see, I'd heard such quantities of arguments, which very nearly turned my head, and turned other people's heads enough to make them approve of murder; and I'd come to realize that all our troubles spring from our failure to use plain, clean-cut language. So I resolved always to speak - and to act - quite clearly, as this was the only way of setting myself on the right track. That's why I say there are pestilences and there are victims; no more than that. If, by making that statement, I, too, become a carrier of the plague-germ, at least I don't do it willfully. I try, in short, to be an innocent murderer. You see, I've no great ambitions.
"I grant we should add a third category: that of the true healers. But it's a fact one doesn't come across many of them, and anyhow it must be a hard vocation. That's why I decided to take, in every predicament, the victims's side, so as to reduce the damage done. Among them I can at least try to discover how one attains to the third category; in other words, to peace."
Dr Rieux, The Plague by Albert Camus.