A Covenant not to defend myself from force, by force, is always void. For... no man can transfer or lay down his Right to save himself from Death.
Thomas HobbesAnd therefore, as when there is a controversy in an account, the parties must by their own accord, set up for right Reason, the Reason of some Arbitrator, or Judge, to whose sentence, they will both stand, or their controversy must either come to blows, or be undecided, for want of a right Reason constituted by Nature; so is it also in all debates of what kind soever.
Thomas Hobbes