Mathematics is not a spectator sport; to understand it, one must engage with it actively.

Law is not a system of rules, but a union of primary and secondary rules.

思想开阔，才能包容天下的千山万壑；思想谦虚，才能接受天下的真知大德；思想平明，才能纵论天下的善恶得失；思想深沉，才能讨论天下的学说哲理；思想稳定，才能应付天下的风云变幻。

所有幼儿教育必须以促进孩子的长此以往发展为目的。

I'm not a victim. I'm a survivor.

"The measure of a good book is determined by how much it disturbs the reader."

简单不是缺乏复杂性，而是对复杂性的解决。

华尔街从私有制向公有制的转变是倒退的一大步。