| ### QUESTION 77 ### OF CHEATING, WHICH IS COMMITTED IN BUYING AND SELLING ###  |

| #### Prologue |

| #### #### We must now consider those sins which relate to voluntary commutations. First, we shall consider cheating, which is committed in buying and selling: secondly, we shall consider usury, which occurs in loans. In connection with the other voluntary commutations no special kind of sin is to be found distinct from rapine and theft. #### Under the first head there are four points of inquiry: #### (1) Of unjust sales as regards the price; namely, whether it is lawful to sell a thing for more than its worth? #### (2) Of unjust sales on the part of the thing sold; #### (3) Whether the seller is bound to reveal a fault in the thing sold? #### (4) Whether it is lawful in trading to sell a thing at a higher price than was paid for it? ####  |