可持续性不是一种选择；它是我们对后代的责任。

组合数学就像是不用实际计数的计数艺术。

最终，一个理论的价值不在于它的复杂性，而在于它解释和预测的能力。

We are all in the gutter, but some of us are looking at the stars.

The highest knowledge is to know that we are surrounded by mystery.

I could be bounded in a nutshell and count myself a king of infinite space.

写作是学习死亡，学习放弃一切。

做出伟大工作的唯一途径是热爱你所做的事情。