诗歌是表达无法言说之物的艺术。
Poetry is the art of saying the unsayable.
如果人们不相信数学是简单的，那只是因为他们没有意识到生活有多么复杂。
Natural experiments are a powerful tool for understanding causal relationships in the real world.
小说是一种通过谎言讲述真相的伟大艺术形式。
There are some people who never have fallen in love,if they hadn't heard there was such a thing.
成功不是幸福的关键。幸福是成功的关键。如果你热爱你所做的事情，你就会成功。