要理解递归，首先必须理解递归。
To understand recursion, one must first understand recursion.
The soul is placed in the body like a rough diamond, and must be polished, or the luster of it will never appear.
The only way to escape the mundane is to meticulously observe it.
In the depth of winter, I finally learned that within me there lay an invincible summer.
学习原理在不同物种间是通用的。
"Even if you’re not perfect, you’re limited edition."
Greatness is not about being the best, it's about being better than you were yesterday.