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一个好的数学家是能看到定理之间类比关系的人。一个伟大的数学家是能看到类比关系之间的类比关系的人。
A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.
凡事要量力而行,如果用鸡蛋去碰石头,即使把世界上的鸡蛋都碰完,石头还会和原来一样,不会被损毁。
The more you sweat in practice, the less you bleed in battle.
We must plan for future development with a global perspective and actively participate in international energy governance.
The idea of revolution is an adolescent fantasy.
The best books are those that tell you what you know already.