In the face of challenges, we must have the courage and wisdom to overcome difficulties.

出自《三国演义》，梁羽生在《七剑下天山》中引用

The key to solving complex problems is often to find the right abstraction that simplifies the problem without losing its essential features.

知足者常乐，追求无止境的欲望永无满足。

我喜欢夜晚。没有黑暗，我们永远看不到星星。

Art is not about what you see, but what you make others see.