"In the fair-trade system the farmergets a higher advance price and at the end of the year they also get bonus payments."

VOA: standard.2010.03.10

But your food shall be the grasses of the field; By the sweat of your brow Shall you get bread to eat" So knowledge or wisdom or perhaps moral freedom seem to come at a very high price.

你也要吃田间的菜蔬;,你必须汗流满面,才得以糊口“,所以，人类为得到智慧，道德自由,付出了极大的代价。

耶鲁公开课 - 旧约导论课程节选

Effectively, you get interest from this because it's sold at a discount, so the price that you pay is equal to one hundred minus the discount.

实际上,你仍然从中获得利息,因为债券是打折出售的,所以买入价,等于一百减去折扣

耶鲁公开课 - 金融市场课程节选