追求数学知识是一场永无止境的冒险，充满了挑战、惊喜和解决不可解问题的满足感。

The most important room in a house is the space between people.

The process of mathematical discovery is as important as the discovery itself.

先有完善的法律制度，然后才能有治理国家的人才

写作是一种乐观的行为。