生活就是斗争。
Every problem in mathematics is an opportunity to learn something new.
The only thing that matters is how you feel about yourself.
我总是尝试做一些让我有点害怕的事情。
I don’t need a crown to know I’m a king.
任何牺牲基本自由以换取短暂安全的人,最后既得不到安全也得不到自由。