—— 请按键盘 空白键 开始游戏 ——

Doubt is not a pleasant condition, but certainty is an absurd one.
Time is a great teacher, but unfortunately it kills all its pupils.
The only limit is the one you set for yourself.
In science, failure is not the opposite of success but a stepping stone towards it.
本当の幸せは、自分で見つけるものだ。