Yufei Luo's Blog - But I was so much older then, I am younger than that now.

[Yufei Luo]

https://lyf35.github.io/2020/11/15/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0-%E8%81%9A%E7%B1%BB/

哪怕什么真理无穷，进一寸有进一寸的欢喜