—— 请按键盘 空白键 开始游戏 ——

The way we perceive the world is shaped by our expectations, and often, what we see is what we expect to see.
The thing that we are trying to do at Facebook, is just help people connect and communicate more efficiently.
失败不是我的敌人...害怕失败才是我的敌人。
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.