To enjoy freedom we have to control ourselves.
你孩子吃不上饭是因为我。
The pursuit of mathematical knowledge is a journey that never ends, filled with endless curiosity and wonder.
You forget what you want to remember, and you remember what you want to forget.
生活是世界上最罕见的事情。大多数人只是存在,仅此而已。
数学的本质在于其自由性。