_Quest._ XI. May I take advantage of another's necessity to buy for less than the worth, or sell for more: as e. g. a poor man must needs have money suddenly for his goods, though he sell them but for half the worth; and I have no need of them: am I bound to give him the worth when I have no need? and when it is a great kindness to him to give him any thing in that strait? So also when I have no desire to sell my horse, and another's necessity maketh him willing to give more than he is worth, may I not take it? _Answ._ To the first case: you must distinguish between an act of justice and of charity; and between your need of the thing and the worth of it to you. Though you have no need of the poor man's goods, yet if you buy them, both justice and charity require that you give him as much as they are worth to you, though not so much as they are worth in the market: yea, and that you buy them of him in his necessity; for if you give him but what they are worth to you, you are no loser by it; and you should do another good, when it is not to your own hurt or loss. By what they are worth to you, I mean so much as that you be no loser. As, if it be meat or drink, though you have no present need, perhaps you will shortly have need, and if you buy not that, you must buy as much of somewhat else. In strict justice you may be a saver, but not a gainer, by buying of the poor in their necessity. 2. But if you buy a durable commodity for less than it is worth, you should take it but as a pledge, and allow the seller liberty to redeem it if he can, that he may get more after of another. 3. And to the poor in such necessity, charity must be exercised as well as justice. Therefore if you are able to lend them money to save them the loss of underselling, you should do it. (I account that man only able who hath money which no greater service of God requireth.) And if you are not able yourself, you should endeavour to get some others to relieve him, if you can without a greater inconvenience. And for the second case, it is answered before: you may not take more than it is worth, ever the more for another's necessity; nor in any other case than you might have done it in, if there had been no such necessity of his. _Quest._ XII. May I not make advantage of another's ignorance or error in bargaining? _Answ._ Not to get more than your commodity is worth, nor to get his goods for less than the worth; no, nor to get the true worth against his will, or with scandal: but if it be only to get a true worth of your own commodity when he is willing, but would be offended if his ignorance in some point were cured, you may so far make use of his ignorance to a lawful end, as is said before in the case of concealing faults. _Quest._ XIII. May I strive to get before another, to get a good bargain which he desireth?