“All the methods of appointing authorities that have been tried, divine right, and election, and heredity, and balloting, and assemblies and parliaments and senate—all have proved ineffectual. Everyone knows that not one of these methods attains the aim either of entrusting power only to the incorruptible, or of preventing power from being abused. Everyone knows on the contrary that men in authority—be they emperors, ministers, governors, or police officers—are always, simply from the possession of power, more liable to be demoralized, that is, to subordinate public interests to their personal aims than those who have not the power to do so. Indeed, it could not be otherwise.”