局部和全局现象之间的相互作用是数论中反复出现的主题。

艺术是最高形式的希望。

Sustainability isn't an option; it's a necessity for the future of our planet.

美德即使被压迫，依然是美德。

The market is an example of a spontaneous order: a system which is the product of human action but not of human design.

"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."