In the end, we will remember not the words of our enemies, but the silence of our friends.
最终，我们记住的不是敌人的话语，而是朋友的沉默。
Writing is a way of fighting against oblivion, against death.
The quality of an organization is determined by the quality of its systems.
少了我，世界还有什么乐趣。
Mathematics advances not by the efforts of individuals alone but through the collective work of generations.