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 longer I live the more I see that I am never wrong about anything, and that all the pains I have so humbly taken to verify my notions have only wasted my time.
真正的进步来自于行业和环保人士的合作,而非对立。
Economic development requires a stable legal environment.