Every mathematical problem has a solution; it just takes time and effort to find it.
每个数学问题都有一个解决方案；只是需要时间和努力去找到它。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
Make women rational creatures, and free citizens, and they will quickly become good wives; — that is, if men do not neglect the duties of husbands and fathers.
数学是理性的音乐。
Your work will be endless， but your time is finite. You cannot limit the work so you must limit your time. Hours are the only thing you can manage.
声音、微笑和眼神，会成为彼此间的特殊沟通。