Faith is the sense of life, that sense by virtue of which man does not destroy himself, but continues to live on.

数学不仅仅是数字和方程；它是关于理解宇宙中的深层模式和联系。

I have made a ceaseless effort not to ridicule， not to bewail， not to scorn human actions， but to understand them.

质量不是一时的风尚；它是一种哲学。