知识是人类的最高财富，而分享知识则是最高的慷慨。
To understand the arithmetic of algebraic varieties is to understand the symmetries hidden within them.
As much as child e'er loved, or father found.
译文：心中能分辨是非对错，那么处理事情就能快速决断；做人不能忘记廉耻，立身处世就不会有卑劣污浊的行径。赏析：做人要明辨是非，做事方能果断坚决，才不会黑白不分，优柔寡断。仁义礼智信，我们时刻铭记古人的做人准则，不要做有伤自身名节的事。
The most dangerous thing is to do nothing.
