The idea is not to have any 90-degree angles. In the beginning, there was the diagonal. The diagonal comes from the idea of the explosion which "re-forms" the space.

要成为一个好的数学家，你需要既有直觉又有严谨。

元素周期表是现实构建模块的地图。

Some books are to be tasted， others to be swallowed， and some few to be chewed and digested.

在我看来，语言是我们最取之不尽的魔法源泉。