几何不仅仅是关于形状；它是关于理解我们生活的空间及其内部的关系。
Geometry is not just about shapes; it is about understanding the space we live in and the relationships within it.
The more you know, the more you realize you don't know.
文章之所以能永存于天地之间，是因为它能阐明道理、记录政事、体察民间疾苦、乐于称道他人的善行。
写好文章的唯一方法就是先写糟糕的文章。
The teacher must believe in the potential of his students. He must see in each one of them a spark of the divine fire.
You can't manage what you don't measure, and you can't improve what you don't manage.