做义事也是这样，能演说的就演说，能讲书的就讲书，能做事的就做事，这样义事才可以成功。 

真相往往隐藏在小小的细节中。

The power of literature lies in its ability to disturb, to question, to undermine what is taken for granted.

The best designs solve problems you didn’t even know you had.

计算机科学和数学的交汇处是最令人兴奋的突破发生的地方。