The elegance of a mathematical proof is in its simplicity and clarity.

有时候最简单的旋律最难写。

广东话谚语

"I hope that in this year to come, you make mistakes. Because if you are making mistakes, then you are making new things, trying new things, learning, living, pushing yourself, changing yourself, changing your world. You're doing things you've never done before, and more importantly, you're doing something."

学习是系统中产生的任何变化，这些变化或多或少会永久性地改变其适应环境的能力。