数学家的工作永远不会真正完成；总有更多的东西需要探索。
A mathematician's work is never truly finished; there is always more to explore.
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.
太阳在天空中闪耀，眼前没有一片云彩。
The best preparation for good work tomorrow is to do good work today.