Concrete is the marble of our time, a democratic material.
混凝土是我们时代的大理石，一种民主的材料。
In every society, there are voices that are silenced; literature gives them a chance to speak.
In science, there is no such thing as a final answer.
Globalization isn't a multiple-choice question, it's a survival test.
最好的数学不仅正确，而且具有启发性。