The historian must have a kind of faith that humanity will not and cannot perish.
历史学家必须怀有一种信念：人类不会也不能灭亡。
The key to understanding cryptography is understanding that it's not just about keeping secrets, but about managing trust.
I'm not afraid to fall, because I know I'll get back up.
最美的东西往往是最简单的。
教育的回报太遥远，而今天的生计太紧迫。
Talent is the foundation of enterprise development; without it, even the best strategy is meaningless.
数学语言是普遍的，超越了文化和语言的障碍。