—— 请按键盘 空白键 开始游戏 ——

Fear is such a powerful emotion for humans that when we allow it to take us over, it drives compassion right out of our hearts.
恐惧是人类如此强大的情感,以至于当我们允许它控制我们时,它会驱赶我们心中的同情。
You have to spend some energy and effort to see the beauty of math.