—— 请按键盘 空白键 开始游戏 ——

We don't inherit the earth from our ancestors; we borrow it from our children—this is especially true in forestry.
The market is a reflection of human nature, and human nature never changes.
我们都在寻找某种东西,即使我们不知道它是什么。
I think that the role of the mathematician is to discover these patterns and to explain them.