There is a primary law, eternal, invariable, engraved in the hearts of all; it is Right Reason. Never does it speak in vain to the virtuous man, whether it ordains or prohibits. The wicked alone are untouched by its voice. It is easy to be understood and is not different in one country and in another; it is today what it will be tomorrow and for all time.
Cicero (roman philosopher, statesman, orator and political theorist)