Well may the boldest fear and the wisest tremble when they contemplate the condition of our country.
当他们思考我们国家的状况时，最勇敢的人可能会害怕，最聪明的人可能会颤抖。
The effects of policy changes are often more nuanced than simple economic models suggest.
The biggest mistake you can make is thinking you know everything.
语言是存在的家。