—— 请按键盘 空白键 开始游戏 ——

数学是将复杂转化为清晰的艺术。
Mathematics is the art of turning complexity into clarity.
"You can't knock on opportunity's door and not be ready."
安全不是优先事项——优先事项可以改变。安全是一个永远不会改变的核心价值。
Life is not complex. We are complex. Life is simple, and the simple thing is the right thing.
"Books are the mirrors that show us who we are."