The most important educational principle is not to cherish the time, to waste time.
最重要的教育原则是不要爱惜时间，要浪费时间。
世事犹如书籍，一页页被翻过去。人要向前看，少翻历史旧账。
Mathematics is not just a collection of abstract theories, but a language that describes the universe.
译文：用镜子照自己，可以看见形体容貌，用心性照自己，可以遇见祸福吉凶。赏析：为人处世，我们要多思考自己的言行是否得当，多想想自己的举止是否会得罪他人。凡事都要反躬自省，以免招致祸患。
"Justice is not always black and white; sometimes it's a shade of grey."
The only way to do great work is to love what you do.
Cada hombre lleva dentro de sí todas las edades de la humanidad.