—— 请按键盘 空白键 开始游戏 ——

The theory of economic development is the study of how the economic system generates the forces which incessantly transform it.
In the fruit industry, quality starts long before the harvest—it begins with the soil and the care we put into every step.
"The only thing to do with good advice is to pass it on. It is never of any use to oneself."
"Children deserve books that challenge them, not just entertain."