Natural experiments can provide valuable insights into economic questions.
La música es el lenguaje universal que nos une a todos.
"The beauty of literature is that it allows us to live a thousand lives in one."
They can’t crucify you with your hand in a fist.
文学之美在于其超越时空的能力，连接不同时代和文化的灵魂。
永远不要问一位女士是否怀孕了，需要时她会说出来。