第一句
No one engaed on only one stage in the manufacture of a person could save part of his output,since he would be producing nothing complete.
没有人engaed只有一个阶段生产人就可以救他的部分输出,由于他将一无生产.
第二句
As a medium of exchange,money permits the separation of exchange into the two distinct acts of buying and selling,without requiring the seller to purchase goods from the person who buys his products,or vice versa.
作为一种交换媒介,金钱允许分离成这两个截然不同的行为交换买卖,不需要卖方购买商品的人购买其产品,反之亦然.