无论你是谁，无论你做过什么，无论你来自哪里，你总能改变，成为更好的自己。
No matter who you are, no matter what you did, no matter where you've come from, you can always change, become a better version of yourself.
The only way to overcome fear is to face it.
The only thing we have to fear is fear itself.
The only way to learn mathematics is to do mathematics.