Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

"Writing is a way of talking without being interrupted."

做人最紧要开心，唔开心就冇意思。

"A good illustration should tell a story on its own, without the need for words."

每天都要努力变得比起床时聪明一点。忠实而出色地履行职责。你会有条不紊地出人头地，但不一定会一蹴而就......最后，如果你活得足够长，大多数人都会得到他们应得的。

Philosophy is the eternal pursuit of wisdom.

我们不试图预测未来。我们试图买便宜的东西。

It's often safer to be in chains than to be free.

色散理论是量子力学中最美丽的篇章。