Every mathematical problem is a window into a new world of understanding.
景物依旧，人事已非，一切事情都完了，想要说话，眼泪却先流下来
"I’m the one who decides my value."
An ounce of practice is worth more than tons of preaching.
I’ll never stop helping and loving people the way Jesus said to.
The only way to do great work is to love what you do.
Poverty is not just a lack of money; it is the absence of viable choices.