Combinatorics is the art of counting without counting.

In a world of universal deceit, telling the truth is a revolutionary act.

The only person you should try to be better than is the person you were yesterday.

在商业中，就像在采石中一样，精确和耐心会带来最好的结果。

基本物理现象中的偶然性并非由于我们对隐藏原因的无知，而是自然界的基本属性。

1925年，孙中山在病榻前对张学良说，指出苏联是红色帝国主义。