学习数学的最好方法就是做数学。
The best way to learn mathematics is to do mathematics.
能够达到仁的境界为最好，如果在各方面达不到仁的境界，怎么能算得上是有智慧的人呢？
Every problem in mathematics is an opportunity to learn something new.
Pessimism leads to weakness, optimism to power.
The web is a tool for communicating with the rest of humanity.
Success is not final, failure is not fatal: it is the courage to continue that counts.