—— 请按键盘 空白键 开始游戏 ——

The beauty of a mathematical proof is in its elegance and the way it reveals the underlying truth in a clear and concise manner.
Your self-worth is determined by you. You don’t have to depend on someone telling you who you are.
可持续性不是一种选择,而是我们业务的未来。
一本书永远是通往另一个世界的敞开之门。