—— 请按键盘 空白键 开始游戏 ——

People with a sense of fulfillment think it a good world and would like to conserve it as it is, while the frustrated favor radical change.
有成就感的人会把世界看成一个友好的世界,并乐于看到它照原样保持下去,但失意者却会乐于看到世界急遽改变。
The difference between correlation and causation is not just academic—it can have profound policy implications.