You have to be comfortable with being uncomfortable if you want to make progress in mathematics.

都是出卖，卖给中原各国也可以，何必非要卖给越国呢？ 

组织的质量由其人员的质量决定。

The theory of automorphic forms is a central subject in modern number theory.

数学的真正力量在于它能够揭示宇宙混沌中隐藏的模式和结构。