我不让任何人控制我。
生活是条沉船,但我们不要忘了在救生艇上高歌。
数学不是一项观赏性运动。
In the end, we will remember not the words of our enemies, but the silence of our friends.
The unity of mathematics is not imposed but discovered.
The truth is often hidden, and it takes courage to uncover it.