—— 请按键盘 空白键 开始游戏 ——

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
人生只能做自己决定的事情。但是,自己决定的事情,什么都能做到。
The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.
The historian is a prophet looking backwards.
The heart of a mother is a deep abyss at the bottom of which you will always find forgiveness.