要理解一个国家，你必须理解它的沉默。

痛苦的秘诀在于有空闲去烦恼自己是否幸福。

In farming, as in life, the smallest details often make the biggest difference.《The Fruitful Future》

To imagine is to practice freedom.

The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.