The division of labor in manufacturing is the great principle by which we gain advantage over other nations.

真正明智的教师不会邀请你进入他智慧的房子，而是引导你到自己心灵的门槛。

The concept of a legal right is a complex one, involving not only the existence of a rule but also the existence of a remedy.

在美国做一个黑人就是处于一种持续的愤怒状态。