People can be divided into these types: strangers, acquaintances, familiar people, friends, and close friends. True friendship isn't about compliments to your face, but whether you're mentioned when they talk about friends behind your back.

真正的艺术存在于作品与观者的相遇之中。

In computer science, we often deal with problems that are easy to state but hard to solve.

The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.

全息原理表明，空间体积中的信息可以被认为是在该空间的边界上编码的。

每个人都会有一次迷失自我。重要的是如何从中恢复。