—— 请按键盘 空白键 开始游戏 ——

Mathematics teaches us to think logically and creatively at the same time.
占据有利位置,更容易成功。  
We’re in the business of chaos and the art of subtraction.
I am following nature without being able to grasp her.
解析:教导学生,不到他想弄明白而不得的时候,不去开导他;不到他想出来却说不出来的时候,不去启发他。