Standing to the right-side of the entrance of the U.S. Supreme court is the statue entitled, Authority of Law. The statue's sword illustrates the enforcement power of the law. Instructively, the tablet of marble is inscribed with the Latin word, LEX, and it is in front of the sword. Lex is the Latin word for law. In other words, the statue teaches us that the power of the sword needs to be subservient to estabilished law and not the arbitrary orders of rulers.
Aristotle wrote in Politics the following,
Surely all matters of this kind are better regulated by law than by the will of man, which is a very unsafe rule.