—— 请按键盘 空白键 开始游戏 ——

Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.
在商业中,如果你不前进,你就在落后——可持续性现在是进步的方向。
When playing Monopoly, spend all you have to buy, barter, or trade for the Orange properties. Don’t bother with Utilities.
The past is a puzzle, and we are all trying to piece it together.