The human being is not a thing among things; things determine each other, but the human being is ultimately self-determining.
美国是一个巨大的锅炉。只要下面点着火，它会产生无限的能量。
民主……在其存在期间比贵族制或君主制更血腥。记住，民主从未长久。它很快就会浪费、耗尽并谋杀自己。从来没有一个民主国家不自杀。
The most important skill in mathematics is the ability to ask the right questions.
农时：指春耕、夏耘、秋收三个时令。与其等灾荒来了再想办法补救，不如早防备灾荒，而防备灾荒最好就是抓住农时。
The true measure of a leader is not how many followers they have, but how many leaders they create.