Abstract
[14.18] But if there were to be a contract in which neither of the contractors is obliged to perform immediately, but rather at a definite future date, that covenant in the pure condition of nature (i. e. in war) is invalid if any suspicion about performance should intervene: in the commonwealth, not likewise. For he who performs first is, in the first case, uncertain whether the other will perform; in the commonwealth he is certain, since there is [something] to compel [performance]. Thus, unless there be some common coercive power, the one who performs first betrays himself to an enemy— beyond the natural right of defending himself and his [stuff]