The division of labor in manufacturing is the great principle by which we gain advantage over other nations.
当你有一个好收成时,农民高兴,他的妻子高兴,孩子们高兴,动物们高兴,土地也高兴。
Experience is a good school, but the fees are high.
适应旧程序以适应新机器通常意味着适应新机器以使其表现与旧机器相似。
Our license to operate depends as much on social acceptance as it does on technical capability.