—— 请按键盘 空白键 开始游戏 ——

The bond market is the ultimate predictor of future economic activity.
The pen is mightier than the sword if the sword is very short, and the pen is very sharp.
The greatest threat to our forests is not logging, but indifference.
今天我们播下的每一粒种子都是对后代的承诺。
数学中的合作可以带来任何单一思维都无法独自实现的发现。
最具可持续性的农场是那些为几代人着想的农场。