真相很少是纯粹的，也从不简单。

"With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how."

最伟大的旅程不是用里程衡量的，而是用理解衡量的。

We must balance economic growth with environmental protection to ensure a better future.

找到一颗类似地球的行星的可能性，正是推动我们进行系外行星研究的热情所在。