[Sidenote: That faith is to be kept with all men without exception.] 2. Neither is there in this matter any exception of the persons with whom we contract; as if they keep no faith with others, or hold that none ought to be kept, or are guilty of any other kind of vice. For he that contracts, in that he doth contract, denies that action to be in vain; and it is against reason for a knowing man to do a thing in vain; and if he think himself not bound to keep it, in thinking so he affirms the contract to be made in vain. He therefore who contracts with one with whom he thinks he is not bound to keep faith, he doth at once think a contract to be a thing done in vain, and not in vain; which is absurd. Either therefore we must hold trust with all men, or else not bargain with them; that is, either there must be a declared war, or a sure and faithful peace. [Sidenote: Injury defined.] 3. The breaking of a bargain, as also the taking back of a gift, (which ever consists in some action or omission), is called an injury. But that action or omission is called unjust; insomuch as an injury, and an unjust action or omission, signify the same thing, and both are the same with breach of contract and trust. And it seems the word _injury_ came to be given to any action or omission, because they were _without right_; he that acted or omitted, having before conveyed his right to some other. And there is some likeness between that which in the common course of life we call _injury_, and that which in the Schools is usually called _absurd_. For even as he who by arguments is driven to deny the assertion which he first maintained, is said to be brought to an absurdity; in like manner, he who through weakness of mind does or omits that which before he had by contract promised not to do or omit, commits an injury, and falls into no less contradiction than he who in the Schools is reduced to an absurdity. For by contracting for some future action, he wills it done; by not doing it, he wills it not done: which is to will a thing done and not done at the same time, which is a contradiction. An injury therefore is a kind of absurdity in conversation, as an absurdity is a kind of injury in disputation. [Sidenote: An injury can only be done to him with whom we contract.]