—— 请按键盘 空白键 开始游戏 ——

解决复杂问题的关键是提出正确的因果问题。
The key to solving complex problems is to ask the right causal questions.
The truth is, we are all capable of great evil and great good. It is the choices we make that define us.
如果不能满足真正农民的需求,最先进的技术也毫无价值。