Security in the digital world is not just about keeping secrets, but also about ensuring integrity and availability.

计算理论的美在于其抽象和概括的能力，将具体问题转化为通用解决方案。

实现明天的唯一限制将是我们今天的疑虑。

In the end, we are all alone, and that is the fundamental condition of human existence.

每个移民都携带着一个看不见的记忆行李箱。