—— 请按键盘 空白键 开始游戏 ——

Critical comments by students should be taken in a friendly spirit, accumulation of material should not stifle the student’s independence.
如果你想读的书还没有被写出来,那么你必须自己写出来。
The story of human origins is still being written.
The only limit to our realization of tomorrow is our doubts of today.