—— 请按键盘 空白键 开始游戏 ——

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
我是一个美国黑人,我为我的种族感到骄傲。我为自己是谁感到骄傲。我有许多自豪和尊严。