To do mathematics is to engage in an act of creation and discovery simultaneously.
Sustainability isn't a trend—it's the new standard for business.
国家是为法律而组织起来的人民。
勇敢的人可能不会永远活着,但谨慎的人根本活不下去。
碎片化的信息流,让我们失去了理解的连贯性。