数学家是将咖啡转化为定理的装置。
A mathematician is a device for turning coffee into theorems.
而是根据国家的具体情况,去掉那些无益于实用的东西,这就足够使国家的财利增加一倍了。 
The more you're actively and practically engaged, the more successful you will feel.
Financial opening should be advanced steadily, with cross-border risks prevented.
Design should solve problems, not just look good.
Mathematics is the art of turning complexity into clarity.