—— 请按键盘 空白键 开始游戏 ——

If you want to keep something precious, you have to lock it up and throw away the key.
The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.
Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.
努力和热情是任何领域成功的关键,尤其是在音乐中。