"From whatever aspect we regard the question, the right of slavery is null and void, not only as being illegitimate, but also because it is absurd and meaningless. The words slave and right contradict each other, and are mutually exclusive. It will always be equally foolish for a man to say to a man or to a people: “I make with you a convention wholly at your expense and wholly to my advantage; I shall keep it as long as I like, and you will keep it as long as I like.”"