密码学中的挑战不仅仅是创建不可破解的代码，还包括创建即使技术发展也能保持安全的系统。
The challenge in cryptography is not just to create unbreakable codes, but to create systems that remain secure even as technology evolves.
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.
I write to confront the silence, to break it.
The real wealth of a nation grows from its soil.
你的梦想实现不了是因为我。
To be a Jew is to be a witness.
人生最大的遗憾，莫过于轻易地放弃了不该放弃的，固执地坚持了不该坚持的。