Chance is a word void of sense; nothing can exist without a cause.

归根结底，哲学是理论领域的阶级斗争。

走路，应缓慢又稳健；站立，应端直又恭敬；坐着，应端庄又平正；说话，应低沉又和缓。

I don't have any message. I just paint pictures.

Collaboration in mathematics is essential; no one can solve all the problems alone.

我不必向任何人证明什么。没有什么可证明的。