"No! No! No, you behave like this and we become just... savages in the street! The juries and executioners, they elect themselves! No... it is medieval!

The rule of law, it must be held high and if it falls you pick it up and hold it even higher! 

For all of society, all civilized people will have nothing to shelter them if it is destroyed!" 

--- Hercule Poirot in "Murder on the Orient Express"

(Photo © ITV / PBS Masterpiece Mystery)