What is the rule of law, exactly? Where did the idea of the rule of law come from and why do we care about it so much? Does it just mean following whatever the laws say, or is it something more particular than that? And does every society with laws follow the rule of law, or can you have laws but not follow the rule of law? Can breaking the law ever be a way to respect the rule of law? And what on earth does firing the FBI director have to do with the rule of law?