The history behind the design
A Right and a Duty comes straight from Magna Carta clause 61, which made holding the king to the charter both a right and a duty.
Under Clause 61 of the 1215 Magna Carta, holding the king to the charter was set up as both a right and a duty. Twenty-five barons were chosen to observe and keep the peace and liberties granted, and the charter allowed anyone in the land who wished to swear an oath to support them.
The idea that people share responsibility for keeping their rulers within the law is one of the charter’s lasting principles.