The word ‘slavery’ and ‘right’ are contradictory, they...

The word ‘slavery’ and ‘right’ are contradictory, they cancel each other out. Whether as between one man and another, or between one man and a whole people, it would always be absurd to say: "I hereby make a covenant with you which is wholly at your expense and wholly to my advantage; I will respect it so long as I please and you shall respect it as long as I wish.