不要放弃你的幻想。当幻想没有了以后，你还可以生存，但是你虽生犹死。

The truth is a slippery thing, especially in the dark.

数学的真正力量在于它简化复杂事物的能力，使不可理解的事物变得可理解。

Traceability isn't just for consumers—it's our moral obligation.

The so-called understanding is often just a misunderstanding that is widely circulated.

I am among those who think that science has great beauty.

教学最重要的部分是教导什么是知识。