—— 请按键盘 空白键 开始游戏 ——

The past is a foreign country; they do things differently there.
Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.
Don’t tell people how to do things, tell them what to do and let them surprise you with their results.
The highest form of theory is the ability to simplify complex things into simple and clear principles.