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。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
能源的未来在于多样化——没有任何单一来源可以满足我们所有需求。