人生就像一首歌，有高潮也有低谷。

The sociological imagination enables its possessor to understand the larger historical scene in terms of its meaning for the inner life and the external career of a variety of individuals.

如果他们能让你问错问题，他们就不必担心答案了。

The greatest glory in living lies not in never falling, but in rising every time we fall.

Science is the most powerful tool for human beings to understand and transform the world.

最强大的变革工具是知识，严谨地追求并广泛地分享。