孔子说：“不到苦思冥想时，不去提醒；不到欲说无语时，不去引导。不能举一例能理解三个类似的问题，就不要再教他了。”

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

The best stories are those that resonate with the reader's own experiences, that touch something deep within them.

电子特性可以受到拓扑保护的认识彻底改变了我们对固态物理学的理解。